Fix: add missing parser/docgen, rename parser→go_parser, add uv packaging

- parser.py renamed to go_parser.py (avoids Python builtin conflict)
- docgen.py was missing from flat structure
- Added pyproject.toml for uv
- Updated .mcp.json to use uv run
- Updated README for uv workflow

pyproject.toml

@@ -0,0 +1,14 @@
+[project]
+name = "dev-intel-poc"
+version = "0.1.0"
+description = "Developer Intelligence POC — knowledge graph from Go codebase"
+requires-python = ">=3.11"
+dependencies = [
+    "requests>=2.32",
+    "tree-sitter>=0.24",
+    "tree-sitter-go>=0.23",
+    "mcp>=1.9",
+]
+
+[tool.uv]
+dev-dependencies = []