fix(v2): scope and redact execution events

backend/src/backup_tool/api/app.py

@@ -244,6 +244,10 @@ def create_app(settings: Settings) -> FastAPI:
                 raise Problem(403, "csrf_failed", "CSRF validation failed.")
         return user, scopes, cookie_auth
 
+    def enforce_scope(scopes: set[str], required: str) -> None:
+        if "*" not in scopes and required not in scopes:
+            raise Problem(403, "insufficient_scope", "Required scope is missing.")
+
     async def audit(
         db: AsyncSession,
         request: Request,
@@ -767,8 +771,9 @@ def create_app(settings: Settings) -> FastAPI:
     async def enqueue_execution(
         job_id: str,
         db: Annotated[AsyncSession, Depends(session)],
-        _: Annotated[tuple[User, set[str], bool], Depends(require)],
+        identity: Annotated[tuple[User, set[str], bool], Depends(require)],
     ) -> dict[str, Any]:
+        enforce_scope(identity[1], "execution:control")
         try:
             execution = await enqueue(db, job_id)
         except EnqueueError as error:
@@ -793,8 +798,9 @@ def create_app(settings: Settings) -> FastAPI:
     async def get_execution(
         execution_id: str,
         db: Annotated[AsyncSession, Depends(session)],
-        _: Annotated[tuple[User, set[str], bool], Depends(actor)],
+        identity: Annotated[tuple[User, set[str], bool], Depends(actor)],
     ) -> dict[str, object]:
+        enforce_scope(identity[1], "execution:read")
         execution = await db.get(Execution, execution_id)
         if execution is None:
             raise Problem(404, "resource_not_found", "Execution was not found.")
@@ -804,8 +810,9 @@ def create_app(settings: Settings) -> FastAPI:
     async def cancel_execution(
         execution_id: str,
         db: Annotated[AsyncSession, Depends(session)],
-        _: Annotated[tuple[User, set[str], bool], Depends(require)],
+        identity: Annotated[tuple[User, set[str], bool], Depends(require)],
     ) -> dict[str, object]:
+        enforce_scope(identity[1], "execution:control")
         execution = await request_cancellation(db, execution_id)
         if execution is None:
             raise Problem(409, "cancellation_not_allowed", "Execution cannot be cancelled.")
@@ -815,8 +822,9 @@ def create_app(settings: Settings) -> FastAPI:
     async def retry_execution(
         execution_id: str,
         db: Annotated[AsyncSession, Depends(session)],
-        _: Annotated[tuple[User, set[str], bool], Depends(require)],
+        identity: Annotated[tuple[User, set[str], bool], Depends(require)],
     ) -> dict[str, object]:
+        enforce_scope(identity[1], "execution:control")
         try:
             execution = await retry(db, execution_id)
         except EnqueueError as error:
@@ -829,8 +837,9 @@ def create_app(settings: Settings) -> FastAPI:
     async def execution_events(
         execution_id: str,
         db: Annotated[AsyncSession, Depends(session)],
-        _: Annotated[tuple[User, set[str], bool], Depends(actor)],
+        identity: Annotated[tuple[User, set[str], bool], Depends(actor)],
     ) -> StreamingResponse:
+        enforce_scope(identity[1], "execution:read")
         execution = await db.get(Execution, execution_id)
         if execution is None:
             raise Problem(404, "resource_not_found", "Execution was not found.")

backend/src/backup_tool/execution.py

@@ -169,9 +169,25 @@ async def retry(db: AsyncSession, execution_id: str) -> Execution | None:
     return execution
 
 
+def _redact_progress(value: object) -> object:
+    """Apply common redaction plus execution-specific path redaction recursively."""
+    if isinstance(value, Mapping):
+        safe: dict[str, object] = {}
+        for key, item in value.items():
+            normalized = str(key).lower()
+            if any(marker in normalized for marker in ("path", "secret", "token", "password")):
+                safe[str(key)] = "[REDACTED]"
+            else:
+                safe[str(key)] = _redact_progress(item)
+        return safe
+    if isinstance(value, list):
+        return [_redact_progress(item) for item in value]
+    return redact(value)
+
+
 def public_event(execution: Execution) -> dict[str, object]:
     """Return redacted progress suitable for polling or SSE."""
-    progress = redact(execution.progress)
+    progress = _redact_progress(execution.progress)
     return {
         "id": execution.id,
         "state": execution.state,