Add mise configuration for local toolchain management

Sets up `mise` for automatic Java + Maven provisioning, matching the
pattern already in use in minfraud-api-dotnet and GeoIP2-dotnet. This
lets contributors run the full test/lint loop locally without manually
installing a JDK or Maven.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: oschwald

mise.lock

@@ -0,0 +1,30 @@
+# @generated - this file is auto-generated by `mise lock` https://mise.jdx.dev/dev-tools/mise-lock.html
+
+[[tools.java]]
+version = "26.0.0"
+backend = "core:java"
+
+[[tools.maven]]
+version = "3.9.15"
+backend = "aqua:apache/maven"
+
+[tools.maven."platforms.linux-arm64"]
+url = "https://archive.apache.org/dist/maven/maven-3/3.9.15/binaries/apache-maven-3.9.15-bin.tar.gz"
+
+[tools.maven."platforms.linux-arm64-musl"]
+url = "https://archive.apache.org/dist/maven/maven-3/3.9.15/binaries/apache-maven-3.9.15-bin.tar.gz"
+
+[tools.maven."platforms.linux-x64"]
+url = "https://archive.apache.org/dist/maven/maven-3/3.9.15/binaries/apache-maven-3.9.15-bin.tar.gz"
+
+[tools.maven."platforms.linux-x64-musl"]
+url = "https://archive.apache.org/dist/maven/maven-3/3.9.15/binaries/apache-maven-3.9.15-bin.tar.gz"
+
+[tools.maven."platforms.macos-arm64"]
+url = "https://archive.apache.org/dist/maven/maven-3/3.9.15/binaries/apache-maven-3.9.15-bin.tar.gz"
+
+[tools.maven."platforms.macos-x64"]
+url = "https://archive.apache.org/dist/maven/maven-3/3.9.15/binaries/apache-maven-3.9.15-bin.tar.gz"
+
+[tools.maven."platforms.windows-x64"]
+url = "https://archive.apache.org/dist/maven/maven-3/3.9.15/binaries/apache-maven-3.9.15-bin.tar.gz"

mise.toml

@@ -0,0 +1,18 @@
+[settings]
+experimental = true
+lockfile = true
+disable_backends = [
+    "asdf",
+    "vfox",
+]
+
+[tools]
+java = "latest"
+maven = "latest"
+
+[hooks]
+enter = "mise install --quiet --locked"
+
+[[watch_files]]
+patterns = ["mise.toml", "mise.lock"]
+run = "mise install --quiet --locked"