refactor: break up create_gitea_issue_via_mcp into helpers (#647)

Co-authored-by: Kimi Agent <kimi@timmy.local>
Co-committed-by: Kimi Agent <kimi@timmy.local>

src/timmy/mcp_tools.py

@@ -205,9 +205,9 @@ def _bridge_to_work_order(title: str, body: str, category: str) -> None:
 
 
 async def _ensure_issue_session():
-    """Lazily create and connect the module-level MCP issue session.
+    """Get or create the cached MCP session, connecting if needed.
 
-    Returns the connected ``MCPTools`` instance or raises on failure.
+    Returns the connected ``MCPTools`` instance.
     """
     from agno.tools.mcp import MCPTools
 
@@ -226,18 +226,18 @@ async def _ensure_issue_session():
     return _issue_session
 
 
-def _build_issue_args(title: str, body: str) -> dict:
-    """Build the ``issue_write`` tool arguments dict.
-
-    Appends the auto-filing signature and parses owner/repo from settings.
-    """
+def _build_issue_body(body: str) -> str:
+    """Append the auto-filing signature to the issue body."""
     full_body = body
     if full_body:
         full_body += "\n\n"
     full_body += "---\n*Auto-filed by Timmy's thinking engine*"
+    return full_body
 
+
+def _build_issue_args(title: str, full_body: str) -> dict:
+    """Build MCP tool arguments for ``issue_write`` with method=create."""
     owner, repo = settings.gitea_repo.split("/", 1)
-
     return {
         "method": "create",
         "owner": owner,
@@ -272,7 +272,9 @@ async def create_gitea_issue_via_mcp(title: str, body: str = "", labels: str = "
 
     try:
         session = await _ensure_issue_session()
-        args = _build_issue_args(title, body)
+        full_body = _build_issue_body(body)
+        args = _build_issue_args(title, full_body)
+
         result = await session.session.call_tool("issue_write", arguments=args)
 
         _bridge_to_work_order(title, body, _category_from_labels(labels))