fix(mcp): wire run_powershell and MCP server for Windows/Scoop environment

- Add .mcp.json at project root (correct location for claude mcp add)
- Add mcp_env.toml: project-scoped PATH/env config for subprocess execution
- shell_runner.py: load mcp_env.toml, add stdin=DEVNULL to fix git hang
- mcp_server.py: call mcp_client.configure() at startup (fix ACCESS DENIED)
- conductor skill files: enforce run_powershell over Bash, tool use hierarchy
- CLAUDE.md: document Bash unreliability on Windows, run_powershell preference

.mcp.json

@@ -0,0 +1,14 @@
+{
+  "mcpServers": {
+    "manual-slop": {
+      "type": "stdio",
+      "command": "C:\\Users\\Ed\\scoop\\apps\\uv\\current\\uv.exe",
+      "args": [
+        "run",
+        "python",
+        "C:\\projects\\manual_slop\\scripts\\mcp_server.py"
+      ],
+      "env": {}
+    }
+  }
+}