Complete documentation for future sessions

- CLAUDE.md for AI agents to understand the codebase
- GITEA-GUIDE.md centralizes all Gitea operations (API, Registry, Auth)
- DEVELOPMENT-WORKFLOW.md explains complete dev process
- ROADMAP.md, NEXT-SESSION.md for planning
- QUICK-REFERENCE.md, TROUBLESHOOTING.md for daily use
- 40+ detailed docs in /docs folder
- Backend as submodule from Gitea

Everything documented for autonomous operation.

Co-Authored-By: Claude Sonnet 4.5 (1M context) <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,42 @@
+# Credentials (NEVER commit)
+CLUSTER-CREDENTIALS.md
+*.pem
+*.key
+id_rsa*
+*.env
+.env.local
+
+# Cluster config
+.kube/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# IDEs
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Temp
+tmp/
+temp/
+*.tmp
+
+# Backend (already has own .gitignore)
+backend/node_modules/
+backend/dist/
+backend/bun.lock
+
+# Frontend (when created)
+frontend/node_modules/
+frontend/dist/
+frontend/build/