feat(CF-580): Remove legacy notes.md fallback from orphan recovery

Phase 3 cleanup: Transition complete to transcript-based recovery.

- Remove fallback to recoverNotesFromTempFile()
- All recovery now uses JSONL transcripts only
- Log warning if transcript not found for recovery
- Simplify recovery logic (no more dual-method path)

This completes the daemon elimination:
- LaunchAgent plist: Deleted
- session-notes-sync script: Deleted
- Legacy fallback code: Removed
- Result: Simpler architecture, no daemon overhead

Migration complete. System now uses only transcript-based recovery.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

src/tools/sessions.ts

@@ -535,21 +535,10 @@ export async function sessionRecoverOrphaned(args: { project?: string }): Promis
         }
       }
 
-      // Fallback: Attempt to recover notes from temp file if transcript not recovered
-      if (!transcriptRecovered && session.working_directory) {
-        const tempFilePath = `${session.working_directory}/.claude-session/${session.id}/notes.md`;
-
-        try {
-          const { recoverNotesFromTempFile } = await import('../utils/notes-parser.js');
-          const recovered = await recoverNotesFromTempFile(session.id, tempFilePath, 'recovered');
-
-          if (recovered > 0) {
-            results.push(`  → Recovered ${recovered} note(s) from temp file (legacy)`);
-            totalNotesRecovered += recovered;
-          }
-        } catch (err) {
-          results.push(`  ⚠ Could not recover notes: ${err instanceof Error ? err.message : String(err)}`);
-        }
+      // Note: Legacy fallback to notes.md removed (CF-580 Phase 3)
+      // All recovery now uses JSONL transcripts. If recovery failed, log warning.
+      if (!transcriptRecovered) {
+        results.push(`  ⚠ No transcript found for recovery`);
       }
     } catch (err) {
       results.push(`✗ Failed to mark session ${session.id} as abandoned: ${err}`);