docs: update project docs after 360 audit

docs/ONBOARDING.md

@@ -40,7 +40,7 @@ npm run dev
 
 Open `http://localhost:4321/tutorial-git/` — the Astro dev server should start. All 9
 chapters are wired as single-page sections. The site is deployed to
-`braboj.github.io/tutorial-git/` via GitHub Actions.
+`braboj.me/tutorial-git/` via GitHub Actions.
 
 
 ## 4. Key files
@@ -68,7 +68,7 @@ files for the web version.
 
 ```
 01-introduction.md         06-expert-topics.md
-02-building-blocks.md      07-playbook.md
+02-building-blocks.md      playbook/          (17 recipe pages)
 03-branching-and-merging.md 08-appendix.md
 04-remote-repositories.md  09-glossary.md
 05-nested-repositories.md

docs/PLAYBOOK.md

@@ -33,7 +33,7 @@ Operational reference for common tasks in tutorial-git.
 - Place exercises at the end of the chapter under `## Exercises`
 - Each exercise has: **Task**, **Steps** (numbered), **Verify**
 - Exercises within a chapter use the same lab repository
-- Cross-topic recipes go in `07-playbook.md`
+- Cross-topic recipes go in `chapters/playbook/`
 
 ### 1.4 Adding quiz questions
 

docs/dev-journal.md

@@ -280,3 +280,48 @@ Architecture overview and chronological session log for tutorial-git.
 
 **Open issues:**
 - #106, #109, #110, #113, #114, #116–#119, #122, #127, #131–#133, #135, #140, #147
+
+### 2026-04-25 — 360 audit, issue triage, nav automation spike
+
+**Tool:** Claude Code (Opus 4.6)
+
+**Key changes:**
+- Full 360 audit: content, Astro site, assets, issue tracker
+- Simplified label system from 22 labels to 8 (P0–P4 priority + bug/docs/feature)
+- Triaged all 29 open issues with priority labels
+- Created nav automation spike in imbra-spikes (`cross-cutting/SPIKE-TUTORIAL-NAV-AUTOMATION.md`)
+- Updated ONBOARDING.md and PLAYBOOK.md to reflect current project state
+
+**Audit findings:**
+- Content: all image refs and cross-chapter links valid; glossary missing "worktree"
+- Astro site: well-built; dark mode code blocks don't adapt; base path hardcoded
+- Assets: 1 orphaned drawio, 1 orphaned PNG, 16 .bkp temp files
+- README: broken ch07 link, stale copy instructions, domain mismatch
+- Issue tracker: 23 issues created in bulk with no priority — now triaged
+
+**Issues created:**
+- #151 — Add favicon
+- #152 — Add Open Graph meta tags
+- #153 — Split substantial playbook recipes into standalone pages
+- #154 — Improve thin playbook recipes in rebasing, stashing, and submodules
+- #155 — Review nested repositories chapter
+- #156 — Rename playbook index to 07-playbook.md
+- #157 — Fix outdated README
+- #158 — Add worktree to glossary
+- #159 — Fix dark mode styling for code blocks
+- #160 — Make base path portable for domain migration
+- #161 — Add lazy loading for images
+- #162 — Clean up orphaned assets and drawio backups
+
+**Decisions:**
+- Analytics: GSC for tutorials (free), Plausible for Wuseria
+- Playbook split rule: own page only if recipe has command + explanation + gotcha
+- Sequence #154 before #153 (improve content before splitting)
+- Sequence #156 before #157 (create file before fixing README link)
+
+**Open issues:**
+- P0: #156, #157, #162
+- P1: #153, #154, #155, #158
+- P2: #110, #151, #152, #159, #161
+- P3: #135, #160
+- P4: #106, #109, #113, #114, #116–#119, #122, #127, #131–#133, #140, #147