Initial commit: LlamaLink Go rewrite

Complete rewrite from Python/FastAPI to Go/Gin:
- Go backend: auth (API keys + bcrypt), llama.cpp subprocess manager,
  hot-swap multi-model, rate limiting, quota system, webhooks
- Vue 3 SPA admin panel (src/) with Tailwind CSS
- Deployment: Docker multi-stage, docker-compose, nginx, systemd
- GORM/SQLite models: ApiKey, Model, UsageLog, Quota, Webhook
- REST API: /api/v1/admin/* (keys, models, chat, usage, health)
- Embedded frontend via go:embed (build output at web/dist/)

Removed legacy Python artifacts (app/, tests/, pyproject.toml, etc.)

.gitignore

@@ -0,0 +1,75 @@
+# Go binaries
+/llamalink
+/llamalink-*
+/dist/
+/bin/
+
+# Test artifacts
+*.test
+*.out
+coverage.html
+coverage.out
+
+# Vendoring — using go modules
+/vendor/
+
+# Go workspace
+go.work
+go.work.sum
+
+# Environment
+.env
+.env.local
+.env.*.local
+*.env
+!.env.example
+
+# Database
+*.db
+*.db-shm
+*.db-wal
+*.sqlite
+*.sqlite3
+/data/
+
+# LLM models y binarios
+/models/
+*.gguf
+/llama-server
+/llama-cli
+
+# Logs
+*.log
+logs/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Frontend
+web/frontend/node_modules/
+web/frontend/dist/
+web/frontend/.vite/
+web/dist/
+web/frontend/.env
+web/frontend/.env.local
+web/frontend/coverage/
+
+# Build artifacts
+*.tmp
+*.bak
+tmp/
+.cache/
+
+# Coverage reports
+*.coverprofile
+
+# Misc
+vendor/