- Update `publishComment` to return standardized string error codes (e.g., `session-actor-publish-blocked`, `auth-required`) instead of raw Error objects, ensuring consistency with test expectations.
- Introduce `resolveActiveSigner` dependency injection in `publishComment` to allow tests to supply mock signers, resolving failures where `getActiveSigner()` returned null.
- Expose `commentCache` via `__testExports` in `js/nostr/commentEvents.js` and clear it in `tests/nostr/comment-events.test.mjs` via `afterEach` to prevent test state pollution.
- Update test assertions to match the standardized error codes.
This resolves CI failures related to mismatched error messages and shared state in comment event tests.
- Add `isSessionActor` helper to `js/nostr/sessionActor.js` to identify ephemeral keys.
- Update `js/nostr/viewEvents.js` to namespace view deduplication caches by `actorPubkey` to prevent data leakage between sessions.
- Block comment publishing for session actors in `js/nostr/commentEvents.js`.
- Block watch history list publishing for session actors in `js/nostr/client.js`.
- Block user block list publishing for session actors in `js/userBlocks.js`.
- Block hashtag preference publishing for session actors in `js/services/hashtagPreferencesService.js`.
- Add inline documentation clarifying variable sources.
- Added `js/utils/lruCache.js` with hit/miss tracking.
- Updated `js/nostr/cachePolicies.js` to set 5-minute TTL for comments/reactions.
- Integrated caching and incremental fetching in `js/nostr/commentEvents.js`.
- Implemented `listVideoReactions` in `js/nostr/reactionEvents.js` with caching logic.
- Updated `subscribeVideoComments` test to expect `#A` filter keys (uppercase), matching the implementation and other tests.
- Improved `normalizeCommentTarget` in `js/nostr/commentEvents.js` to correctly derive `parentKind` and `parentAuthorPubkey` from the `parentCommentEvent` object if available.
- Enhanced `parentAuthorRelay` resolution to look up the specific `p` tag for the author pubkey instead of defaulting to the first found `p` tag.
- Updated `publishComment` test expectations to remove duplicate tags (implementation correctly deduplicates) and reflect improved metadata derivation (correct `K` tag and `P` relay).
- Added async wait to `subscribeVideoComments` test to prevent race condition in unsubscribe assertion.
