fun: HTTP RPC framework with DI, guards, streams and codegen

- Service binding via reflection with 4 method signatures
- Dependency injection (Wired/auto tags) and guards
- Streamable HTTP (NDJSON) streaming responses
- Go/TypeScript client code generation (self-contained, with interceptors)
- Enum support, structured Result, logging
- 16 regression tests covering all fixed bugs

.gitignore

@@ -0,0 +1,23 @@
+# IDE
+.idea/
+*.iml
+
+# Binaries
+*.exe
+*.dll
+*.so
+*.dylib
+
+# Generated code
+gen/
+
+# Logs
+*.log
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Dependencies
+vendor/
+node_modules/