style(cloud): reformat modules and restore except-tuple parentheses

Apply consistent line-length formatting across governance, plugins, the
SDK routers (governance_api, user_api), user_auth, and migrations
0003/0005/0006.

Also restore the parentheses on two except clauses that had been dropped
into invalid Python 3 `except A, B:` syntax: plugins._coerce_to_manifest
(KeyError, ValueError) and PasswordHasher.verify (InvalidHashError,
VerificationError). Both modules now import cleanly again.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/cloud-platform/cloud/governance.py

@@ -91,8 +91,7 @@ def enforce_user_submission_policy(
     if not policy.submission_enabled:
         raise TaskSubmissionPolicyError("task submission is disabled for this user")
     restricted = (
-        policy.allowed_host_ids is not None
-        or policy.allowed_device_targets is not None
+        policy.allowed_host_ids is not None or policy.allowed_device_targets is not None
     )
     if not restricted:
         return
@@ -104,8 +103,12 @@ def enforce_user_submission_policy(
     ):
         raise TaskSubmissionPolicyError("target host is not permitted")
     if policy.allowed_device_targets is not None:
-        if target_device_id is None or (
-            target_host_id,
-            target_device_id,
-        ) not in policy.allowed_device_targets:
+        if (
+            target_device_id is None
+            or (
+                target_host_id,
+                target_device_id,
+            )
+            not in policy.allowed_device_targets
+        ):
             raise TaskSubmissionPolicyError("target device is not permitted")