* fix(app): distinguish changed and deleted files
Successful reads now reconcile transient missing events without letting stale
cached data mask a deletion. File notices expose only actions valid for the
current buffer state.
* fix(app): preserve file state ordering
* fix(app): allow retrying file checks
* fix(app): clear unchanged file conflicts
* fix(app): keep file conflict recovery consistent
Own disk observation and read ordering in one model so stale reads and failed subscriptions cannot produce contradictory actions.
* fix(app): allow retrying file preview errors
Preserve daemon read errors and expose retry for initial and non-editable file loads.
* feat(files): edit workspace files on web
Keep source buffers synchronized with host file changes and require an explicit overwrite or reload when revisions diverge.
* feat(panels): surface and protect modified tabs
Expose tooltip and modification state through the generic panel boundary so tabs can show stable metadata and guard every close route consistently.
* fix(tests): use portable fake timeout handle
* fix(files): harden editor conflict handling
Preserve modified panel state across tab eviction, use precise revisions for optimistic writes, coalesce concurrent file watchers, and localize the editor interface.
* fix(files): close editor concurrency gaps
Coalesce clean reloads, preserve subscriber identities and file permissions, suspend pending saves during close confirmation, and carry precise revisions through file reads.
* test(files): expect read revision metadata
