feat(matrix): land QA follow-ups and refresh docs

- harden Matrix onboarding/chat lifecycle after manual QA
- refresh README and Matrix docs to match current behavior
- add local ignores for runtime artifacts and include current planning/report docs

Closes #7
Closes #9
Closes #14

sdk/mock.py

@@ -22,6 +22,30 @@ from sdk.interface import (
 logger = structlog.get_logger(__name__)
 
 
+DEFAULT_SKILLS = {
+    "web-search": True,
+    "fetch-url": True,
+    "email": False,
+    "browser": False,
+    "image-gen": False,
+    "files": True,
+}
+
+DEFAULT_SAFETY = {
+    "email-send": True,
+    "file-delete": True,
+    "social-post": True,
+}
+
+DEFAULT_SOUL = {"name": "Лямбда", "instructions": ""}
+
+DEFAULT_PLAN = {
+    "name": "Beta",
+    "tokens_used": 0,
+    "tokens_limit": 1000,
+}
+
+
 class MockPlatformClient:
     """
     Заглушка SDK платформы Lambda.
@@ -119,26 +143,11 @@ class MockPlatformClient:
         await self._latency()
         stored = self._settings.get(user_id, {})
         return UserSettings(
-            skills=stored.get("skills", {
-                "web-search": True,
-                "fetch-url": True,
-                "email": False,
-                "browser": False,
-                "image-gen": False,
-                "files": True,
-            }),
+            skills={**DEFAULT_SKILLS, **stored.get("skills", {})},
             connectors=stored.get("connectors", {}),
-            soul=stored.get("soul", {"name": "Лямбда", "instructions": ""}),
-            safety=stored.get("safety", {
-                "email-send": True,
-                "file-delete": True,
-                "social-post": True,
-            }),
-            plan=stored.get("plan", {
-                "name": "Beta",
-                "tokens_used": 0,
-                "tokens_limit": 1000,
-            }),
+            soul={**DEFAULT_SOUL, **stored.get("soul", {})},
+            safety={**DEFAULT_SAFETY, **stored.get("safety", {})},
+            plan={**DEFAULT_PLAN, **stored.get("plan", {})},
         )
 
     async def update_settings(self, user_id: str, action: Any) -> None:
@@ -146,13 +155,13 @@ class MockPlatformClient:
         settings = self._settings.setdefault(user_id, {})
 
         if action.action == "toggle_skill":
-            skills = settings.setdefault("skills", {})
+            skills = settings.setdefault("skills", DEFAULT_SKILLS.copy())
             skills[action.payload["skill"]] = action.payload.get("enabled", True)
         elif action.action == "set_soul":
-            soul = settings.setdefault("soul", {})
+            soul = settings.setdefault("soul", DEFAULT_SOUL.copy())
             soul[action.payload["field"]] = action.payload["value"]
         elif action.action == "set_safety":
-            safety = settings.setdefault("safety", {})
+            safety = settings.setdefault("safety", DEFAULT_SAFETY.copy())
             safety[action.payload["trigger"]] = action.payload.get("enabled", True)
 
         logger.info("Settings updated", user_id=user_id, action=action.action)