fix(mcp_server): migrate from MCP_TOOL_SPECS dict to mcp_tool_specs.get_tool_schemas()

Phase 1 of code_path_audit_phase_2_20260624 deleted mcp_client.MCP_TOOL_SPECS
(the 778-line dict literal). This broke scripts/mcp_server.py which iterated
over mcp_client.MCP_TOOL_SPECS in its list_tools() handler — the MCP server
crashed on startup with AttributeError, breaking the entire manual-slop MCP.

Fix: use mcp_tool_specs.get_tool_schemas() (the new ToolSpec registry) and
convert via .to_dict() to the JSON-compatible dict format the MCP Tool
constructor expects.

Verified: 46 tools listed (45 from registry + run_powershell); tool call
(get_file_summary) dispatched end-to-end correctly; 23 mcp-related unit
tests pass.

scripts/mcp_server.py

@@ -19,6 +19,7 @@ sys.path.insert(0, project_root)
 sys.path.insert(0, os.path.join(project_root, "src"))
 
 import mcp_client
+import mcp_tool_specs
 import shell_runner
 
 from mcp.server import Server
@@ -51,7 +52,7 @@ server = Server("manual-slop-tools")
 @server.list_tools()
 async def list_tools() -> list[Tool]:
  tools = []
- for spec in mcp_client.MCP_TOOL_SPECS:
+ for spec in [t.to_dict() for t in mcp_tool_specs.get_tool_schemas()]:
   tools.append(Tool(
     name=spec["name"],
     description=spec["description"],