Add Claude agents and review-and-commit skill

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

.claude/agents/go-dev.md

@@ -0,0 +1,66 @@
+---
+description: Standard Go development commands for this project
+globs: "**/*.go"
+alwaysApply: false
+---
+
+# Go Development Commands
+
+## Testing
+
+```bash
+# Run all tests
+go test ./...
+
+# Run tests in a specific package
+go test ./internal/checkin/...
+
+# Run a single test by name
+go test ./internal/checkin/... -run TestCheckOut
+
+# Run tests with verbose output
+go test -v ./...
+
+# Run tests with race detector
+go test -race ./...
+```
+
+## Formatting and Linting
+
+```bash
+# Format all Go files
+gofmt -w .
+
+# Organize imports (group stdlib, external, internal)
+goimports -w .
+
+# Vet for common mistakes
+go vet ./...
+```
+
+## Code Generation
+
+```bash
+# Regenerate sqlc query code after editing internal/store/queries/*.sql
+task sqlc
+
+# Regenerate proto/gRPC code after editing .proto files
+task generate
+```
+
+## Building
+
+```bash
+# Compile all packages (catches errors without producing binaries)
+go build ./...
+
+# Tidy module dependencies after adding/removing imports
+go mod tidy
+```
+
+## After any code change
+
+1. `gofmt -w .`
+2. `goimports -w .` (if imports changed)
+3. `go vet ./...`
+4. `go test ./...`