diff --git a/backend/.env.example b/backend/.env.example
deleted file mode 100644
index 949f2ee..0000000
--- a/backend/.env.example
+++ /dev/null
@@ -1,41 +0,0 @@
-NODE_ENV=development
-
-# Port config
-PORT=3000
-
-# Database
-DATABASE_URL=mongodb://localhost/dbtest
-
-#JWT config
-JWT_SECRET=
-EXPPIRE_DAYS=
-
-#Hash password
-SALT_ROUNDS=
-
-#CORS_ALLOW=http://localhost:3000
-CORS_ALLOW=*
-HOST=http://localhost:3000
-
-# Cloudinary
-CLOUDINARY_NAME=
-CLOUDINARY_API_KEY=
-CLOUDINARY_API_SECRET=
-
-# knexjs
-DB_TYPE=pg
-DB_HOST=db
-DB_PORT=5432
-DB_USER=postgres
-DB_PASS=postgres
-DB_NAME=boilerplate
-
-
-# docker
-# docker
-POSTGRES_USER=postgres
-POSTGRES_PASSWORD=postgres
-POSTGRES_DB=boilerplate
-
-PGADMIN_DEFAULT_EMAIL=admin@gmail.com
-PGADMIN_DEFAULT_PASSWORD=admin@gmail.com
\ No newline at end of file
diff --git a/backend/package-lock.json b/backend/package-lock.json
index 0fe11ed..845dbae 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -113,7 +113,6 @@
             "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.16.12.tgz",
             "integrity": "sha512-dK5PtG1uiN2ikk++5OzSYsitZKny4wOCD0nrO4TqnW4BVBTQ2NGS3NgilvT/TEyxTST7LNyWV/T4tXDoD3fOgg==",
             "dev": true,
-            "peer": true,
             "dependencies": {
                 "@babel/code-frame": "^7.16.7",
                 "@babel/generator": "^7.16.8",
@@ -2913,8 +2912,7 @@
             "version": "20.5.1",
             "resolved": "https://registry.npmjs.org/@types/node/-/node-20.5.1.tgz",
             "integrity": "sha512-4tT2UrL5LBqDwoed9wZ6N3umC4Yhz3W3FloMmiiG4JwmUJWpie0c7lcnUNd4gtMKuDEO4wRVS8B6Xa0uMRsMKg==",
-            "dev": true,
-            "peer": true
+            "dev": true
         },
         "node_modules/@types/normalize-package-data": {
             "version": "2.4.3",
@@ -2943,7 +2941,6 @@
             "version": "7.4.1",
             "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.4.1.tgz",
             "integrity": "sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A==",
-            "peer": true,
             "bin": {
                 "acorn": "bin/acorn"
             },
@@ -4998,7 +4995,6 @@
             "version": "7.32.0",
             "resolved": "https://registry.npmjs.org/eslint/-/eslint-7.32.0.tgz",
             "integrity": "sha512-VHZ8gX+EDfz+97jGcgyGCyRia/dPOd6Xh9yPv8Bl1+SoaIwD+a/vlrOmGRUyOYu7MwUhc7CxqeaDZU13S4+EpA==",
-            "peer": true,
             "dependencies": {
                 "@babel/code-frame": "7.12.11",
                 "@eslint/eslintrc": "^0.4.3",
@@ -5126,7 +5122,6 @@
             "resolved": "https://registry.npmjs.org/eslint-plugin-import/-/eslint-plugin-import-2.25.4.tgz",
             "integrity": "sha512-/KJBASVFxpu0xg1kIBn9AUa8hQVnszpwgE7Ld0lKAlx7Ie87yzEzCgSkekt+le/YVhiaosO4Y14GDAOc41nfxA==",
             "dev": true,
-            "peer": true,
             "dependencies": {
                 "array-includes": "^3.1.4",
                 "array.prototype.flat": "^1.2.5",
@@ -7358,8 +7353,7 @@
         "node_modules/lodash": {
             "version": "4.17.21",
             "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-            "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
-            "peer": true
+            "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
         },
         "node_modules/lodash.camelcase": {
             "version": "4.3.0",
@@ -8506,7 +8500,6 @@
             "version": "8.7.1",
             "resolved": "https://registry.npmjs.org/pg/-/pg-8.7.1.tgz",
             "integrity": "sha512-7bdYcv7V6U3KAtWjpQJJBww0UEsWuh4yQ/EjNf2HeO/NnvKjpvhEIe/A/TleP6wtmSKnUnghs5A9jUoK6iDdkA==",
-            "peer": true,
             "dependencies": {
                 "buffer-writer": "2.0.0",
                 "packet-reader": "1.0.0",
@@ -8827,7 +8820,6 @@
             "version": "2.5.1",
             "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.5.1.tgz",
             "integrity": "sha512-vBZcPRUR5MZJwoyi3ZoyQlc1rXeEck8KgeC9AwwOn+exuxLxq5toTRDTSaVrXHxelDMHy9zlicw8u66yxoSUFg==",
-            "peer": true,
             "bin": {
                 "prettier": "bin-prettier.js"
             },
@@ -10212,7 +10204,6 @@
             "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-10.9.1.tgz",
             "integrity": "sha512-NtVysVPkxxrwFGUUxGYhfux8k78pQB3JqYBXlLRZgdGUqTO5wU/UyHop5p70iEbGhB7q5KmiZiU0Y3KlJrScEw==",
             "dev": true,
-            "peer": true,
             "dependencies": {
                 "@cspotcode/source-map-support": "^0.8.0",
                 "@tsconfig/node10": "^1.0.7",
@@ -10346,7 +10337,6 @@
             "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.2.2.tgz",
             "integrity": "sha512-mI4WrpHsbCIcwT9cF4FZvr80QUeKvsUsUvKDoR+X/7XHQH98xYD8YHZg7ANtz2GtZt/CBq2QJ0thkGJMHfqc1w==",
             "dev": true,
-            "peer": true,
             "bin": {
                 "tsc": "bin/tsc",
                 "tsserver": "bin/tsserver"
@@ -11060,7 +11050,6 @@
             "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.16.12.tgz",
             "integrity": "sha512-dK5PtG1uiN2ikk++5OzSYsitZKny4wOCD0nrO4TqnW4BVBTQ2NGS3NgilvT/TEyxTST7LNyWV/T4tXDoD3fOgg==",
             "dev": true,
-            "peer": true,
             "requires": {
                 "@babel/code-frame": "^7.16.7",
                 "@babel/generator": "^7.16.8",
@@ -13078,8 +13067,7 @@
             "version": "20.5.1",
             "resolved": "https://registry.npmjs.org/@types/node/-/node-20.5.1.tgz",
             "integrity": "sha512-4tT2UrL5LBqDwoed9wZ6N3umC4Yhz3W3FloMmiiG4JwmUJWpie0c7lcnUNd4gtMKuDEO4wRVS8B6Xa0uMRsMKg==",
-            "dev": true,
-            "peer": true
+            "dev": true
         },
         "@types/normalize-package-data": {
             "version": "2.4.3",
@@ -13104,8 +13092,7 @@
         "acorn": {
             "version": "7.4.1",
             "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.4.1.tgz",
-            "integrity": "sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A==",
-            "peer": true
+            "integrity": "sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A=="
         },
         "acorn-jsx": {
             "version": "5.3.2",
@@ -14637,7 +14624,6 @@
             "version": "7.32.0",
             "resolved": "https://registry.npmjs.org/eslint/-/eslint-7.32.0.tgz",
             "integrity": "sha512-VHZ8gX+EDfz+97jGcgyGCyRia/dPOd6Xh9yPv8Bl1+SoaIwD+a/vlrOmGRUyOYu7MwUhc7CxqeaDZU13S4+EpA==",
-            "peer": true,
             "requires": {
                 "@babel/code-frame": "7.12.11",
                 "@eslint/eslintrc": "^0.4.3",
@@ -14837,7 +14823,6 @@
             "resolved": "https://registry.npmjs.org/eslint-plugin-import/-/eslint-plugin-import-2.25.4.tgz",
             "integrity": "sha512-/KJBASVFxpu0xg1kIBn9AUa8hQVnszpwgE7Ld0lKAlx7Ie87yzEzCgSkekt+le/YVhiaosO4Y14GDAOc41nfxA==",
             "dev": true,
-            "peer": true,
             "requires": {
                 "array-includes": "^3.1.4",
                 "array.prototype.flat": "^1.2.5",
@@ -16337,8 +16322,7 @@
         "lodash": {
             "version": "4.17.21",
             "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-            "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
-            "peer": true
+            "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
         },
         "lodash.camelcase": {
             "version": "4.3.0",
@@ -17208,7 +17192,6 @@
             "version": "8.7.1",
             "resolved": "https://registry.npmjs.org/pg/-/pg-8.7.1.tgz",
             "integrity": "sha512-7bdYcv7V6U3KAtWjpQJJBww0UEsWuh4yQ/EjNf2HeO/NnvKjpvhEIe/A/TleP6wtmSKnUnghs5A9jUoK6iDdkA==",
-            "peer": true,
             "requires": {
                 "buffer-writer": "2.0.0",
                 "packet-reader": "1.0.0",
@@ -17435,8 +17418,7 @@
         "prettier": {
             "version": "2.5.1",
             "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.5.1.tgz",
-            "integrity": "sha512-vBZcPRUR5MZJwoyi3ZoyQlc1rXeEck8KgeC9AwwOn+exuxLxq5toTRDTSaVrXHxelDMHy9zlicw8u66yxoSUFg==",
-            "peer": true
+            "integrity": "sha512-vBZcPRUR5MZJwoyi3ZoyQlc1rXeEck8KgeC9AwwOn+exuxLxq5toTRDTSaVrXHxelDMHy9zlicw8u66yxoSUFg=="
         },
         "prettier-linter-helpers": {
             "version": "1.0.0",
@@ -18501,7 +18483,6 @@
             "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-10.9.1.tgz",
             "integrity": "sha512-NtVysVPkxxrwFGUUxGYhfux8k78pQB3JqYBXlLRZgdGUqTO5wU/UyHop5p70iEbGhB7q5KmiZiU0Y3KlJrScEw==",
             "dev": true,
-            "peer": true,
             "requires": {
                 "@cspotcode/source-map-support": "^0.8.0",
                 "@tsconfig/node10": "^1.0.7",
@@ -18595,8 +18576,7 @@
             "version": "5.2.2",
             "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.2.2.tgz",
             "integrity": "sha512-mI4WrpHsbCIcwT9cF4FZvr80QUeKvsUsUvKDoR+X/7XHQH98xYD8YHZg7ANtz2GtZt/CBq2QJ0thkGJMHfqc1w==",
-            "dev": true,
-            "peer": true
+            "dev": true
         },
         "unbox-primitive": {
             "version": "1.0.1",
diff --git a/backend/src/core/database/migrations/20220126075331_users.js b/backend/src/core/database/migrations/20220126075331_users.js
deleted file mode 100644
index 7bbe484..0000000
--- a/backend/src/core/database/migrations/20220126075331_users.js
+++ /dev/null
@@ -1,27 +0,0 @@
-// @ts-check
-/**
- * @param {import("knex")} knex
- */
-const tableName = 'users';
-// 123456
-const DEFAULT_PASSWORD = '$2b$10$4WxWKojNnKfDAicVsveh7.ogkWOBMV1cvRUSPCXwxA05NRX18F0QW';
-exports.up = async knex => {
-    await knex.schema.createTable(tableName, table => {
-        table.increments('id').unsigned().primary();
-        table.string('full_name');
-        table.string('email').unique().notNullable();
-        table.string('password').defaultTo(DEFAULT_PASSWORD);
-        table.dateTime('deleted_at').defaultTo(null);
-        table.timestamps(false, true);
-    });
-
-    await knex.raw(`
-   CREATE TRIGGER update_timestamp
-   BEFORE UPDATE
-   ON ${tableName}
-   FOR EACH ROW
-   EXECUTE PROCEDURE update_timestamp();
- `);
-};
-
-exports.down = knex => knex.schema.dropTable(tableName);
diff --git a/backend/src/core/database/migrations/20220126075339_roles.js b/backend/src/core/database/migrations/20220126075339_roles.js
deleted file mode 100644
index 0dc0df5..0000000
--- a/backend/src/core/database/migrations/20220126075339_roles.js
+++ /dev/null
@@ -1,23 +0,0 @@
-// @ts-check
-/**
- * @param {import("knex")} knex
- */
-const tableName = 'roles';
-exports.up = async knex => {
-    await knex.schema.createTable(tableName, table => {
-        table.increments('id').unsigned().primary();
-        table.string('name');
-        table.dateTime('deleted_at').defaultTo(null);
-        table.timestamps(false, true);
-    });
-
-    await knex.raw(`
-     CREATE TRIGGER update_timestamp
-     BEFORE UPDATE
-     ON ${tableName}
-     FOR EACH ROW
-     EXECUTE PROCEDURE update_timestamp();
-   `);
-};
-
-exports.down = knex => knex.schema.dropTable(tableName);
diff --git a/backend/src/core/database/migrations/20220126075512_users_roles.js b/backend/src/core/database/migrations/20220126075512_users_roles.js
deleted file mode 100644
index d440745..0000000
--- a/backend/src/core/database/migrations/20220126075512_users_roles.js
+++ /dev/null
@@ -1,29 +0,0 @@
-// @ts-check
-/**
- * @param {import("knex")} knex
- */
-const tableName = 'users_roles';
-exports.up = async knex => {
-    await knex.schema.createTable(tableName, table => {
-        table.integer('user_id').unsigned().references('id').inTable('users')
-            .onDelete('CASCADE')
-            .notNullable();
-        table.integer('role_id').unsigned().references('id').inTable('roles')
-            .notNullable();
-
-        table.dateTime('deleted_at').defaultTo(null);
-        table.timestamps(false, true);
-
-        table.primary(['user_id', 'role_id']);
-    });
-
-    await knex.raw(`
-    CREATE TRIGGER update_timestamp
-    BEFORE UPDATE
-    ON ${tableName}
-    FOR EACH ROW
-    EXECUTE PROCEDURE update_timestamp();
-  `);
-};
-
-exports.down = knex => knex.schema.dropTable(tableName);
diff --git a/backend/src/core/database/migrations/20260426162249_init_extension_enums.js b/backend/src/core/database/migrations/20260426162249_init_extension_enums.js
new file mode 100644
index 0000000..ff77491
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426162249_init_extension_enums.js
@@ -0,0 +1,42 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.raw(`CREATE EXTENSION IF NOT EXISTS "uuid-ossp"`);
+
+  await knex.raw(`
+    DO $$ BEGIN
+      CREATE TYPE lawyer_status AS ENUM ('AVAILABLE', 'BUSY', 'OFFLINE');
+    EXCEPTION WHEN duplicate_object THEN null; END $$;
+  `);
+
+  await knex.raw(`
+    DO $$ BEGIN
+      CREATE TYPE report_status AS ENUM ('PENDING', 'RESOLVED');
+    EXCEPTION WHEN duplicate_object THEN null; END $$;
+  `);
+
+  await knex.raw(`
+    DO $$ BEGIN
+      CREATE TYPE ai_role AS ENUM ('USER', 'AI');
+    EXCEPTION WHEN duplicate_object THEN null; END $$;
+  `);
+
+  await knex.raw(`
+    DO $$ BEGIN
+      CREATE TYPE chat_request_status AS ENUM ('PENDING', 'ACCEPTED', 'REJECTED');
+    EXCEPTION WHEN duplicate_object THEN null; END $$;
+  `);
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = async (knex) => {
+  await knex.raw(`DROP TYPE IF EXISTS chat_request_status`);
+  await knex.raw(`DROP TYPE IF EXISTS ai_role`);
+  await knex.raw(`DROP TYPE IF EXISTS report_status`);
+  await knex.raw(`DROP TYPE IF EXISTS lawyer_status`);
+};
diff --git a/backend/src/core/database/migrations/20260426162901_create_roles.js b/backend/src/core/database/migrations/20260426162901_create_roles.js
new file mode 100644
index 0000000..277b04e
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426162901_create_roles.js
@@ -0,0 +1,20 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('roles', table => {
+    table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+    table.string('name', 50).unique().notNullable();
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('roles');
diff --git a/backend/src/core/database/migrations/20260426163046_create_users.js b/backend/src/core/database/migrations/20260426163046_create_users.js
new file mode 100644
index 0000000..6f4c21b
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426163046_create_users.js
@@ -0,0 +1,56 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('users', table => {
+    table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+
+    table.string('email').notNullable();
+    table.text('password_hash').notNullable();
+    table.string('full_name').notNullable();
+
+    table.uuid('role_id').references('id').inTable('roles');
+
+    table.text('avatar_url');
+
+    table.string('referral_code', 50);
+    table.uuid('referred_by').references('id').inTable('users');
+
+    table.string('phone', 20);
+    table.date('date_of_birth');
+    table.string('location');
+
+    table.text('email_confirmation_token');
+
+    table.text('password_reset_token');
+    table.timestamp('password_reset_expiry');
+
+    table.boolean('is_email_confirmed').notNullable().defaultTo(false);
+
+    table.timestamp('last_login_at');
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+
+  // partial index
+  await knex.raw(`
+    CREATE UNIQUE INDEX unique_users_email_active
+    ON users(email)
+    WHERE deleted_at IS NULL;
+  `);
+
+  await knex.raw(`
+    CREATE UNIQUE INDEX unique_users_referral_active
+    ON users(referral_code)
+    WHERE deleted_at IS NULL;
+  `);
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('users');
diff --git a/backend/src/core/database/migrations/20260426163316_create_lawyer_details.js b/backend/src/core/database/migrations/20260426163316_create_lawyer_details.js
new file mode 100644
index 0000000..1329fff
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426163316_create_lawyer_details.js
@@ -0,0 +1,35 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('lawyer_details', table => {
+    table.uuid('user_id').primary()
+      .references('id')
+      .inTable('users')
+      .onDelete('CASCADE');
+
+    table.text('bio');
+    table.integer('experience_years');
+
+    table.boolean('is_verified').notNullable().defaultTo(false);
+    table.float('rating_avg').defaultTo(0);
+
+    table.decimal('price_per_hour', 10, 2);
+
+    table.specificType('status', 'lawyer_status').notNullable().defaultTo('OFFLINE');
+
+    table.string('bar_association');
+    table.string('license_number');
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('lawyer_details');
diff --git a/backend/src/core/database/migrations/20260426181537_create_specialties.js b/backend/src/core/database/migrations/20260426181537_create_specialties.js
new file mode 100644
index 0000000..d41388a
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426181537_create_specialties.js
@@ -0,0 +1,20 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('specialties', table => {
+    table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+    table.string('name').unique().notNullable();
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('specialties');
diff --git a/backend/src/core/database/migrations/20260426181638_create_lawyer_specialties.js b/backend/src/core/database/migrations/20260426181638_create_lawyer_specialties.js
new file mode 100644
index 0000000..3e6f198
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426181638_create_lawyer_specialties.js
@@ -0,0 +1,23 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('lawyer_specialties', table => {
+    table.uuid('lawyer_id')
+      .references('user_id').inTable('lawyer_details')
+      .onDelete('CASCADE');
+
+    table.uuid('specialty_id')
+      .references('id').inTable('specialties')
+      .onDelete('CASCADE');
+
+    table.primary(['lawyer_id', 'specialty_id']);
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('lawyer_specialties');
diff --git a/backend/src/core/database/migrations/20260426181647_create_lawyer_certificates.js b/backend/src/core/database/migrations/20260426181647_create_lawyer_certificates.js
new file mode 100644
index 0000000..82fe275
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426181647_create_lawyer_certificates.js
@@ -0,0 +1,25 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+    await knex.schema.createTable('lawyer_certificates', (table) => {
+        table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+        table.uuid('lawyer_id').references('user_id').inTable('lawyer_details').onDelete('CASCADE');
+        
+        table.string('certificate_name').notNullable();
+        table.text('file_url').notNullable();
+        table.string('issued_by').notNullable();
+        table.date('issue_date').notNullable();
+        
+        table.timestamp('created_at').defaultTo(knex.fn.now());
+        table.timestamp('updated_at').defaultTo(knex.fn.now());
+        table.timestamp('deleted_at');
+    });  
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('lawyer_certificates');
diff --git a/backend/src/core/database/migrations/20260426181700_create_lawyer_experiences.js b/backend/src/core/database/migrations/20260426181700_create_lawyer_experiences.js
new file mode 100644
index 0000000..fcbf7bb
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426181700_create_lawyer_experiences.js
@@ -0,0 +1,27 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+    await knex.schema.createTable('lawyer_experiences', (table) => {
+        table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+        table.uuid('lawyer_id').references('user_id').inTable('lawyer_details').onDelete('CASCADE');
+        
+        table.string('title').notNullable();
+        table.text('description').notNullable();
+        table.date('start_date').notNullable();
+        table.date('end_date');
+        
+        table.check('end_date IS NULL OR end_date >= start_date');
+
+        table.timestamp('created_at').defaultTo(knex.fn.now());
+        table.timestamp('updated_at').defaultTo(knex.fn.now());
+        table.timestamp('deleted_at');
+    });  
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('lawyer_experiences');
diff --git a/backend/src/core/database/migrations/20260426181929_create_ratings.js b/backend/src/core/database/migrations/20260426181929_create_ratings.js
new file mode 100644
index 0000000..feddbec
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426181929_create_ratings.js
@@ -0,0 +1,27 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+    await knex.schema.createTable('ratings', (table) => {
+        table.uuid('user_id').references('id').inTable('users').onDelete('CASCADE');
+        table.uuid('lawyer_id').references('user_id').inTable('lawyer_details').onDelete('CASCADE');
+        
+        table.integer('rating').notNullable().checkBetween([1, 5]);
+        table.text('comment').notNullable();
+        
+        table.timestamp('created_at').defaultTo(knex.fn.now());
+        table.timestamp('updated_at').defaultTo(knex.fn.now());
+        table.timestamp('deleted_at');
+
+        table.primary(['user_id', 'lawyer_id']);
+    });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = async (knex) => {
+    await knex.schema.dropTable('ratings');
+};
diff --git a/backend/src/core/database/migrations/20260426181937_create_reports.js b/backend/src/core/database/migrations/20260426181937_create_reports.js
new file mode 100644
index 0000000..cf5e270
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426181937_create_reports.js
@@ -0,0 +1,27 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('reports', (table) => {
+    table.uuid('target_user_id').references('id').inTable('users').onDelete('CASCADE');
+    table.uuid('reporter_id').references('user_id').inTable('lawyer_details').onDelete('CASCADE');
+    
+    table.text('reason').notNullable();
+    table.specificType('status', 'report_status').defaultTo('PENDING');
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+
+    table.primary(['target_user_id', 'reporter_id']);
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = async (knex) => {
+  await knex.schema.dropTable('reports');
+};
diff --git a/backend/src/core/database/migrations/20260426184537_create_subscriptions.js b/backend/src/core/database/migrations/20260426184537_create_subscriptions.js
new file mode 100644
index 0000000..b3b1088
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426184537_create_subscriptions.js
@@ -0,0 +1,35 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('subscriptions', table => {
+    table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+
+    table.uuid('user_id').references('id').inTable('users').onDelete('CASCADE');
+
+    table.string('plan_name');
+    table.timestamp('start_date');
+    table.timestamp('end_date');
+
+    table.integer('quota');
+    table.boolean('is_active');
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+
+  await knex.raw(`
+    ALTER TABLE subscriptions
+    ADD CONSTRAINT check_quota_non_negative CHECK (quota >= 0);
+  `);
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = async (knex) => {
+  await knex.schema.dropTable('subscriptions');
+};
diff --git a/backend/src/core/database/migrations/20260426184850_subscription_trigger.js b/backend/src/core/database/migrations/20260426184850_subscription_trigger.js
new file mode 100644
index 0000000..4740ac3
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426184850_subscription_trigger.js
@@ -0,0 +1,22 @@
+exports.up = knex => knex.raw(`
+CREATE OR REPLACE FUNCTION update_subscription_status()
+RETURNS TRIGGER AS $$
+BEGIN
+  NEW.is_active :=
+    (NEW.quota > 0)
+    AND (NEW.end_date > NOW())
+    AND (NEW.deleted_at IS NULL);
+  RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER trg_update_subscription_status
+BEFORE INSERT OR UPDATE ON subscriptions
+FOR EACH ROW
+EXECUTE FUNCTION update_subscription_status();
+`);
+
+exports.down = knex => knex.raw(`
+DROP TRIGGER IF EXISTS trg_update_subscription_status ON subscriptions;
+DROP FUNCTION IF EXISTS update_subscription_status() CASCADE;
+`);
diff --git a/backend/src/core/database/migrations/20260426185236_create_laws.js b/backend/src/core/database/migrations/20260426185236_create_laws.js
new file mode 100644
index 0000000..80f4b83
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426185236_create_laws.js
@@ -0,0 +1,32 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('laws', table => {
+    table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+
+    table.text('title').notNullable();
+    table.text('content').notNullable();
+
+    table.string('document_number').notNullable();
+    table.date('issued_date').notNullable();
+    table.date('effective_date').notNullable();
+    table.text('source_url').notNullable();
+
+    table.uuid('user_id')
+      .notNullable()
+      .references('id')
+      .inTable('users');
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('laws');
diff --git a/backend/src/core/database/migrations/20260426185357_create_templates_html.js b/backend/src/core/database/migrations/20260426185357_create_templates_html.js
new file mode 100644
index 0000000..4b46e3d
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426185357_create_templates_html.js
@@ -0,0 +1,23 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('templates', table => {
+    table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+
+    table.string('name').notNullable();
+    table.text('description');
+    table.text('file_url').notNullable();
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('templates');
diff --git a/backend/src/core/database/migrations/20260426190629_create_documents.js b/backend/src/core/database/migrations/20260426190629_create_documents.js
new file mode 100644
index 0000000..c082a05
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426190629_create_documents.js
@@ -0,0 +1,33 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('documents', table => {
+    table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+
+    table.uuid('user_id')
+      .references('id')
+      .inTable('users')
+      .onDelete('CASCADE');
+
+    table.uuid('template_id')
+      .references('id')
+      .inTable('templates');
+
+    table.jsonb('content');
+
+    table.text('file_url').nullable();
+    table.boolean('is_draft').defaultTo(true);
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('documents');
diff --git a/backend/src/core/database/migrations/20260426190943_create_analysis.js b/backend/src/core/database/migrations/20260426190943_create_analysis.js
new file mode 100644
index 0000000..4b79dcd
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426190943_create_analysis.js
@@ -0,0 +1,28 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('analysis', table => {
+    table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+
+    table.uuid('user_id')
+      .references('id')
+      .inTable('users')
+      .onDelete('CASCADE');
+
+    table.jsonb('input_data');
+    table.text('result');
+    table.text('context_summary');
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('analysis');
diff --git a/backend/src/core/database/migrations/20260426191243_create_ai_messages.js b/backend/src/core/database/migrations/20260426191243_create_ai_messages.js
new file mode 100644
index 0000000..898546f
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426191243_create_ai_messages.js
@@ -0,0 +1,27 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('ai_messages', table => {
+    table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+
+    table.uuid('analysis_id')
+      .references('id')
+      .inTable('analysis')
+      .onDelete('CASCADE');
+
+    table.specificType('role', 'ai_role');
+    table.text('content');
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('ai_messages');
diff --git a/backend/src/core/database/migrations/20260426191513_create_conversations.js b/backend/src/core/database/migrations/20260426191513_create_conversations.js
new file mode 100644
index 0000000..cedab72
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426191513_create_conversations.js
@@ -0,0 +1,29 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('conversations', table => {
+    table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+
+    table.uuid('user_id')
+      .references('id')
+      .inTable('users');
+
+    table.uuid('lawyer_id')
+      .references('user_id')
+      .inTable('lawyer_details');
+
+    table.text('context_summary').nullable();
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('conversations');
diff --git a/backend/src/core/database/migrations/20260426192416_create_messages.js b/backend/src/core/database/migrations/20260426192416_create_messages.js
new file mode 100644
index 0000000..ccc85ad
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426192416_create_messages.js
@@ -0,0 +1,30 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('messages', table => {
+    table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+
+    table.uuid('conversation_id')
+      .references('id')
+      .inTable('conversations')
+      .onDelete('CASCADE');
+
+    table.uuid('sender_id')
+      .references('id')
+      .inTable('users');
+
+    table.text('content');
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('messages');
diff --git a/backend/src/core/database/migrations/20260426192617_create_refresh_tokens.js b/backend/src/core/database/migrations/20260426192617_create_refresh_tokens.js
new file mode 100644
index 0000000..db50fdf
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426192617_create_refresh_tokens.js
@@ -0,0 +1,55 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('refresh_tokens', table => {
+    // PK
+    table.uuid('id')
+      .primary()
+      .defaultTo(knex.raw('uuid_generate_v4()'));
+
+    // FK user
+    table.uuid('user_id')
+      .notNullable()
+      .unique() // mỗi user 1 token (theo thiết kế của bạn)
+      .references('id')
+      .inTable('users')
+      .onDelete('CASCADE');
+
+    // token (nên lưu hash)
+    table.text('token').notNullable();
+
+    // expire
+    table.timestamp('expires_at').notNullable();
+
+    // revoke
+    table.boolean('is_revoked').defaultTo(false);
+
+    // timestamps
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+
+  // unique token nhưng chỉ khi chưa bị delete
+  await knex.raw(`
+    CREATE UNIQUE INDEX unique_refresh_token_active
+    ON refresh_tokens(token)
+    WHERE deleted_at IS NULL;
+  `);
+
+  // index để query nhanh theo user
+  await knex.raw(`
+    CREATE INDEX idx_refresh_tokens_user
+    ON refresh_tokens(user_id);
+  `);
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = async (knex) => {
+  await knex.schema.dropTable('refresh_tokens');
+};
diff --git a/backend/src/core/database/migrations/20260426194833_create_chat_requests.js b/backend/src/core/database/migrations/20260426194833_create_chat_requests.js
new file mode 100644
index 0000000..028322e
--- /dev/null
+++ b/backend/src/core/database/migrations/20260426194833_create_chat_requests.js
@@ -0,0 +1,30 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async (knex) => {
+  await knex.schema.createTable('chat_requests', table => {
+    table.uuid('id').primary().defaultTo(knex.raw('uuid_generate_v4()'));
+
+    table.uuid('user_id')
+      .references('id')
+      .inTable('users');
+
+    table.uuid('lawyer_id')
+      .references('user_id')
+      .inTable('lawyer_details');
+
+    table.specificType('status', 'chat_request_status')
+      .defaultTo('PENDING');
+
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+    table.timestamp('deleted_at');
+  });
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = knex => knex.schema.dropTable('chat_requests');
diff --git a/backend/src/core/database/seeds/01-users.js b/backend/src/core/database/seeds/01-users.js
deleted file mode 100644
index 0f73fce..0000000
--- a/backend/src/core/database/seeds/01-users.js
+++ /dev/null
@@ -1,20 +0,0 @@
-/**
- * @param {import("knex")} knex
- */
-
-exports.seed = knex => knex('users')
-    .del()
-    .then(() => knex('users').insert([
-        {
-            full_name: 'Super Admin',
-            email: 'spadmin@gmail.com',
-        },
-        {
-            full_name: 'Admin',
-            email: 'admin@gmail.com',
-        },
-        {
-            full_name: 'User',
-            email: 'user@gmail.com',
-        },
-    ]));
diff --git a/backend/src/core/database/seeds/01_roles_seed.js b/backend/src/core/database/seeds/01_roles_seed.js
new file mode 100644
index 0000000..b0e1b82
--- /dev/null
+++ b/backend/src/core/database/seeds/01_roles_seed.js
@@ -0,0 +1,13 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> } 
+ */
+exports.seed = async (knex) => {
+  await knex('roles').del();
+
+  await knex('roles').insert([
+    { id: knex.raw('uuid_generate_v4()'), name: 'USER' },
+    { id: knex.raw('uuid_generate_v4()'), name: 'LAWYER' },
+    { id: knex.raw('uuid_generate_v4()'), name: 'ADMIN' },
+  ]);
+};
diff --git a/backend/src/core/database/seeds/02-roles.js b/backend/src/core/database/seeds/02-roles.js
deleted file mode 100644
index b869303..0000000
--- a/backend/src/core/database/seeds/02-roles.js
+++ /dev/null
@@ -1,17 +0,0 @@
-/**
- * @param {import("knex")} knex
- */
-
-exports.seed = knex => knex('roles')
-    .del()
-    .then(() => knex('roles').insert([
-        {
-            name: 'SUPER_ADMIN',
-        },
-        {
-            name: 'ADMIN',
-        },
-        {
-            name: 'USER',
-        },
-    ]));
diff --git a/backend/src/core/database/seeds/02_users_seed.js b/backend/src/core/database/seeds/02_users_seed.js
new file mode 100644
index 0000000..2582774
--- /dev/null
+++ b/backend/src/core/database/seeds/02_users_seed.js
@@ -0,0 +1,42 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> } 
+ */
+
+const bcrypt = require('bcrypt');
+
+exports.seed = async (knex) => {
+  await knex('users').del();
+
+  const roles = await knex('roles').select('*');
+
+  const userRole = roles.find(r => r.name === 'USER');
+  const lawyerRole = roles.find(r => r.name === 'LAWYER');
+  const adminRole = roles.find(r => r.name === 'ADMIN');
+
+  const password = bcrypt.hashSync('123456', 10);
+
+  await knex('users').insert([
+    {
+      id: knex.raw('uuid_generate_v4()'),
+      email: 'user@gmail.com',
+      password_hash: password,
+      full_name: 'Normal User',
+      role_id: userRole.id,
+    },
+    {
+      id: knex.raw('uuid_generate_v4()'),
+      email: 'lawyer@gmail.com',
+      password_hash: password,
+      full_name: 'Lawyer User',
+      role_id: lawyerRole.id,
+    },
+    {
+      id: knex.raw('uuid_generate_v4()'),
+      email: 'admin@gmail.com',
+      password_hash: password,
+      full_name: 'Admin User',
+      role_id: adminRole.id,
+    },
+  ]);
+};
\ No newline at end of file
diff --git a/backend/src/core/database/seeds/03-users_roles.js b/backend/src/core/database/seeds/03-users_roles.js
deleted file mode 100644
index 2eb7164..0000000
--- a/backend/src/core/database/seeds/03-users_roles.js
+++ /dev/null
@@ -1,32 +0,0 @@
-/**
- * @param {import("knex")} knex
- */
-
-exports.seed = knex => knex('users_roles')
-    .del()
-    .then(() => knex('users_roles').insert([
-        {
-            user_id: 1,
-            role_id: 1,
-        },
-        {
-            user_id: 1,
-            role_id: 2,
-        },
-        {
-            user_id: 1,
-            role_id: 3,
-        },
-        {
-            user_id: 2,
-            role_id: 2,
-        },
-        {
-            user_id: 2,
-            role_id: 3,
-        },
-        {
-            user_id: 3,
-            role_id: 3,
-        },
-    ]));
diff --git a/backend/src/core/database/seeds/03_lawyer_details_seed.js b/backend/src/core/database/seeds/03_lawyer_details_seed.js
new file mode 100644
index 0000000..f9d5cb4
--- /dev/null
+++ b/backend/src/core/database/seeds/03_lawyer_details_seed.js
@@ -0,0 +1,24 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> } 
+ */
+
+exports.seed = async (knex) => {
+  await knex('lawyer_details').del();
+
+  const lawyerUser = await knex('users')
+    .where('email', 'lawyer@gmail.com')
+    .first();
+
+  await knex('lawyer_details').insert({
+    user_id: lawyerUser.id,
+    bio: 'Luật sư chuyên về dân sự và doanh nghiệp',
+    experience_years: 5,
+    is_verified: true,
+    rating_avg: 4.5,
+    price_per_hour: 50,
+    status: 'AVAILABLE',
+    bar_association: 'Vietnam Bar Federation',
+    license_number: 'LAW123456',
+  });
+};
diff --git a/backend/src/core/database/seeds/04_specialties_seed.js b/backend/src/core/database/seeds/04_specialties_seed.js
new file mode 100644
index 0000000..8b0b3bd
--- /dev/null
+++ b/backend/src/core/database/seeds/04_specialties_seed.js
@@ -0,0 +1,15 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> } 
+ */
+
+exports.seed = async (knex) => {
+  await knex('specialties').del();
+
+  await knex('specialties').insert([
+    { id: knex.raw('uuid_generate_v4()'), name: 'Hình sự' },
+    { id: knex.raw('uuid_generate_v4()'), name: 'Dân sự' },
+    { id: knex.raw('uuid_generate_v4()'), name: 'Doanh nghiệp' },
+    { id: knex.raw('uuid_generate_v4()'), name: 'Đất đai' },
+  ]);
+};