Jacob Magar 9026faaa7c fix: correct subscription validation, byte-based log cap, partial autostart, URL scheme ...

- diagnostics.py: fix allow-list vs field name mismatch in subscription validator
  (_ALLOWED_SUBSCRIPTION_FIELDS now contains schema field names like "logFile",
  not operation names like "logFileSubscription", matching what _SUBSCRIPTION_NAME_PATTERN
  extracts); add _validate_subscription_query() called before any network I/O;
  replace chained .replace() URL building with build_ws_url(); gate connection_issues
  on current failure state via _analyze_subscription_status()
- manager.py: add _cap_log_content() with byte-count pre-check
  (len(value.encode("utf-8", errors="replace")) > _MAX_RESOURCE_DATA_BYTES) so
  multibyte UTF-8 content cannot bypass the 1 MB cap
- resources.py: add double-checked locking (_startup_lock) in ensure_subscriptions_started();
  propagate exception from auto_start_all_subscriptions() via raise so
  _subscriptions_started=True is never set after a failed init
- utils.py: add build_ws_url() that raises ValueError on unknown/missing URL scheme
  instead of silently falling through; add _analyze_subscription_status() helper
  that gates connection_issues on current failure state

Resolves review threads PRRT_kwDOO6Hdxs50E50Y PRRT_kwDOO6Hdxs50E50a PRRT_kwDOO6Hdxs50E50c PRRT_kwDOO6Hdxs50E50d PRRT_kwDOO6Hdxs50E2iN PRRT_kwDOO6Hdxs50E2h8

2026-03-13 10:38:17 -04:00

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