feat: integrate swag fmt and improve CI/CD workflows

- Add swag fmt to git pre-commit hook and CI/CD pipeline
- Create comprehensive CONTRIBUTING.md guide with AI section
- Update ADR-0013 with swag fmt documentation
- Fix swagger generation to include all endpoints
- Improve local testing scripts and workflows
- Update Dockerfile for better swagger handling
- Fix CI/CD workflow file references

Dockerfile

@@ -13,6 +13,16 @@ RUN go mod download
 # Copy source code
 COPY . ./
 
+# Install swag and generate Swagger docs only if they don't exist
+RUN if [ ! -f pkg/server/docs/swagger.json ]; then \
+    echo "📝 Generating Swagger documentation..." && \
+    go install github.com/swaggo/swag/cmd/swag@latest && \
+    cd pkg/server && go generate && \
+    echo "✅ Swagger documentation generated"; \
+    else \
+    echo "✅ Swagger documentation already exists, skipping swag installation and generation"; \
+    fi
+
 # Build binary
 RUN CGO_ENABLED=0 GOOS=linux go build -o /dance-lessons-coach ./cmd/server