fix: face group name read consistency, sync_file_status fix, cleanup ghost records, identity_agent replaced with face_dedup

- get_face_groups_handler: COALESCE(tp.name, tn.label) for name consistency
- sync_file_status: compare JSON vs pre_chunks (not chunk table)
- face consistency: compare frames.len() not total_faces
- cleanup 2 ghost records with NULL file_name/file_path
- replace identity_agent with face_dedup in pipeline stages
- remove identity_agent_api.rs and all references
- update required_processors to match actual processors
- update AGENTS.md with team responsibilities
- add Studio pipeline changes documentation

scripts/swift_processors/Package.swift

@@ -126,5 +126,21 @@ let package = Package(
             path: ".",
             sources: ["swift_face_pose.swift"]
         ),
+        .executableTarget(
+            name: "swift_pose_expansion",
+            dependencies: [
+                .product(name: "ArgumentParser", package: "swift-argument-parser"),
+            ],
+            path: ".",
+            sources: ["swift_pose_expansion.swift"]
+        ),
+        .executableTarget(
+            name: "swift_appearance_expansion",
+            dependencies: [
+                .product(name: "ArgumentParser", package: "swift-argument-parser"),
+            ],
+            path: ".",
+            sources: ["swift_appearance_expansion.swift"]
+        ),
     ]
 )