fix(web): replace actor_id self-event filtering with idempotent cache updates

actor_id identifies the user, not the browser tab. Filtering WS events
by actor_id broke multi-tab sync — other tabs of the same user would
silently miss updates. Instead, make all WS cache handlers idempotent
(dedup checks on add, no-op on duplicate merge/filter) so mutations and
WS events coexist safely without filtering.

- WSClient: pass actor_id to event handlers for future per-handler use
- use-realtime-sync: remove isSelf() gating from onAny and specific handlers
- useCreateIssue: add .some() dedup guard + onSettled invalidation
- use-issue-reactions: remove payload-level self-filter (dedup already present)
- use-issue-timeline: remove payload-level self-filter on comment:created,
  reaction:added, reaction:removed (dedup already present)
- Clean up useCallback deps that no longer reference userId

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web/features/issues/hooks/use-issue-reactions.ts

@@ -34,8 +34,6 @@ export function useIssueReactions(issueId: string, userId?: string) {
       (payload: unknown) => {
         const { reaction, issue_id } = payload as IssueReactionAddedPayload;
         if (issue_id !== issueId) return;
-        if (reaction.actor_type === "member" && reaction.actor_id === userId)
-          return;
         qc.setQueryData<IssueReaction[]>(
           issueKeys.reactions(issueId),
           (old) => {
@@ -45,7 +43,7 @@ export function useIssueReactions(issueId: string, userId?: string) {
           },
         );
       },
-      [qc, issueId, userId],
+      [qc, issueId],
     ),
   );
 
@@ -55,7 +53,6 @@ export function useIssueReactions(issueId: string, userId?: string) {
       (payload: unknown) => {
         const p = payload as IssueReactionRemovedPayload;
         if (p.issue_id !== issueId) return;
-        if (p.actor_type === "member" && p.actor_id === userId) return;
         qc.setQueryData<IssueReaction[]>(
           issueKeys.reactions(issueId),
           (old) =>
@@ -69,7 +66,7 @@ export function useIssueReactions(issueId: string, userId?: string) {
             ),
         );
       },
-      [qc, issueId, userId],
+      [qc, issueId],
     ),
   );
 

apps/web/features/issues/hooks/use-issue-timeline.ts

@@ -63,11 +63,6 @@ export function useIssueTimeline(issueId: string, userId?: string) {
       (payload: unknown) => {
         const { comment } = payload as CommentCreatedPayload;
         if (comment.issue_id !== issueId) return;
-        if (
-          comment.author_type === "member" &&
-          comment.author_id === userId
-        )
-          return;
         qc.setQueryData<TimelineEntry[]>(
           issueKeys.timeline(issueId),
           (old) => {
@@ -77,7 +72,7 @@ export function useIssueTimeline(issueId: string, userId?: string) {
           },
         );
       },
-      [qc, issueId, userId],
+      [qc, issueId],
     ),
   );
 
@@ -161,11 +156,6 @@ export function useIssueTimeline(issueId: string, userId?: string) {
       (payload: unknown) => {
         const { reaction, issue_id } = payload as ReactionAddedPayload;
         if (issue_id !== issueId) return;
-        if (
-          reaction.actor_type === "member" &&
-          reaction.actor_id === userId
-        )
-          return;
         qc.setQueryData<TimelineEntry[]>(
           issueKeys.timeline(issueId),
           (old) =>
@@ -177,7 +167,7 @@ export function useIssueTimeline(issueId: string, userId?: string) {
             }),
         );
       },
-      [qc, issueId, userId],
+      [qc, issueId],
     ),
   );
 
@@ -187,7 +177,6 @@ export function useIssueTimeline(issueId: string, userId?: string) {
       (payload: unknown) => {
         const p = payload as ReactionRemovedPayload;
         if (p.issue_id !== issueId) return;
-        if (p.actor_type === "member" && p.actor_id === userId) return;
         qc.setQueryData<TimelineEntry[]>(
           issueKeys.timeline(issueId),
           (old) =>
@@ -207,7 +196,7 @@ export function useIssueTimeline(issueId: string, userId?: string) {
             }),
         );
       },
-      [qc, issueId, userId],
+      [qc, issueId],
     ),
   );