docs: update .gitignore and README

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -1,6 +1,12 @@
 bin/
+data/
+*.db
+*.db-shm
+*.db-wal
+web/node_modules/
+web/dist/
 *.exe
 *.test
 *.out
-web/dist/
-web/node_modules/
+.idea/
+.vscode/

README.md

@@ -4,7 +4,7 @@ Cross-platform tool to synchronize all repositories from multiple Gitea servers
 
 ## Features
 
-- Single binary deployment
+- Single binary deployment (frontend embedded)
 - Web UI for management (Vue 3 + Element Plus)
 - SQLite database
 - JWT authentication
@@ -14,20 +14,47 @@ Cross-platform tool to synchronize all repositories from multiple Gitea servers
 ## Build
 
 ```bash
-make all
+# Build binary with embedded frontend
+go build -o bin/gitm .
+
+# Or with CGO for SQLite support
+CGO_ENABLED=1 go build -o bin/gitm .
 ```
 
 ## Run
 
 ```bash
+# First-time initialization (set admin password)
 ./bin/gitm --init
+
+# Start server (default :9000)
 ./bin/gitm
+
+# Custom address
 ./bin/gitm --addr :9090
+
+# Custom data directory
+./bin/gitm --data /path/to/data
 ```
 
+## Usage
+
+1. Initialize: `./bin/gitm --init` -- sets admin password
+2. Start: `./bin/gitm` -- starts web server
+3. Open browser to `http://localhost:9000`
+4. Login and add Gitea servers
+5. Discover repos and sync
+
 ## Development
 
 ```bash
+# Frontend dev server
 cd web && npm install && npm run dev
+
+# Backend
 go run main.go
+
+# Run tests
+go test ./internal/gitea/... -v
+CGO_ENABLED=1 go test ./internal/database/... -v
 ```