feat: prepare 2.2.0 with UI and execution fixes

Add dark theme, richer Markdown and readable plugin results.
Improve Android input evidence, response integrity and diagnostics.
Unify lifecycle, guidance receipts and evidence sources across clients.
Keep direct action dispatch without an added AI quota approval layer.
Align version metadata at 2.2.0 and bundle Helper 1.2.2.

Validation: 3063 backend tests before the version bump; 44 after.
Frontend: 317 tests and production build passed.

artemis/agents/validator/action_execution.py

@@ -28,6 +28,7 @@ from artemis.graph.state import State
 from artemis.mcp.action_names import to_canonical_call
 from artemis.mcp.action_session import ActionSession
 from artemis.utils.logger import get_logger
+from artemis.utils.input_state import verify_input
 
 logger = get_logger(__name__)
 
@@ -93,6 +94,25 @@ async def exec_action(
     try:
         res = await session.call(tool_name, wire_args)
     except Exception as e:
+        action_item.update(execution="unknown", side_effect="possible")
         return False, f"MCP call failed: {e}"
 
+    action_item.update(execution="completed" if res.ok else "unknown", side_effect="possible")
+    if tool_name == "input_text" and res.ok:
+        try:
+            elements = await session.ui_hierarchy()
+            from artemis.utils.visualization import format_minimal_list_with_elements
+
+            _, indexed, _ = format_minimal_list_with_elements(elements, width, height)
+            verification = verify_input(indexed, action_item)
+        except (RuntimeError, ValueError, TypeError, OSError):
+            verification = "unknown"
+        action_item["input_verification"] = verification
+        action_item["input_verification_note"] = (
+            "Value presence confirmed in fresh editable node; not business validation."
+            if verification == "present"
+            else "Input dispatched; real value is not confirmed. Observe before submitting; do not blindly retype."
+        )
+        if verification != "present":
+            return False, action_item["input_verification_note"]
     return (True, "") if res.ok else (False, res.message)