fix: runtime fixes for WSL deployment and integration testing

- Fix RunnableConfig type annotations (dict -> RunnableConfig) for LangGraph compat
- Fix AzDo PR URL parsing (_links.web.href fallback + remoteUrl construction)
- Fix AzDo diff endpoint (use iterations/changes instead of non-existent diffs API)
- Fix _format_diff to read changeEntries field (not changes)
- Fix URL encoding for project names with spaces (Billo App Platform)
- Fix subprocess.run for Windows (replace asyncio.create_subprocess_exec with thread pool)
- Fix SlackClient to handle empty webhook URL gracefully
- Fix notify_request_changes to catch all exceptions (not just ReleaseAgentError)
- Fix JSON parsing to strip whitespace before json.loads
- Add CLAUDE_CMD config field for cross-platform CLI path
- Add run.py for Windows SelectorEventLoop workaround
- Add db port mapping in docker-compose for local dev
- Add comprehensive README sections: WSL setup, known issues, TODO list

src/release_agent/api/status.py

@@ -92,11 +92,43 @@ async def manual_pr_trigger(
     db_pool=Depends(get_db_pool),
     _auth: None = Depends(require_operator_token),
 ) -> ManualTriggerResponse:
-    """Manually trigger PR processing for the given PR ID."""
+    """Manually trigger PR processing for the given PR ID.
+
+    Fetches PR details from AzDo first to build a proper initial state
+    including the synthesized webhook payload.
+    """
     from release_agent.api.webhooks import _run_graph
 
+    settings = request.app.state.settings
     thread_id = str(uuid.uuid4())
-    initial_state = {"pr_id": pr_id}
+
+    # Fetch PR info to build webhook-compatible initial state
+    try:
+        pr_info = await tool_clients.azdo.get_pr(int(pr_id))
+        initial_state = {
+            "webhook_payload": {
+                "event_type": "git.pullrequest.updated",
+                "subscription_id": f"manual-{pr_id}",
+                "resource": {
+                    "pull_request_id": int(pr_id),
+                    "title": pr_info.pr_title,
+                    "status": pr_info.pr_status,
+                    "source_ref_name": pr_info.branch,
+                    "target_ref_name": "refs/heads/develop",
+                    "closed_date": None,
+                    "repository": {
+                        "id": f"{pr_info.repo_name}-id",
+                        "name": pr_info.repo_name,
+                        "web_url": f"https://dev.azure.com/billodev/Billo%20App%20Platform/_git/{pr_info.repo_name}",
+                    },
+                },
+            },
+            "pr_id": pr_id,
+            "repo_name": pr_info.repo_name,
+        }
+    except Exception:
+        # Fallback: minimal state, let parse_webhook handle errors
+        initial_state = {"pr_id": pr_id}
 
     task = asyncio.create_task(
         _run_graph(
@@ -105,6 +137,9 @@ async def manual_pr_trigger(
             thread_id=thread_id,
             tool_clients=tool_clients,
             db_pool=db_pool,
+            repos_base_dir=settings.repos_base_dir,
+            graph_name="pr_completed",
+            default_jira_project=settings.default_jira_project,
         )
     )
     request.app.state.background_tasks.add(task)