feat: Identity JSON sync mechanism

- storage.rs: add local_profile field, check disk for profile.jpg in save_identity_file_by_pool
- tmdb_api.rs: trigger JSON sync after TMDb probe
- identity_api.rs: upload_profile_image triggers JSON sync
- identity_binding.rs: bind/unbind/merge trigger JSON sync
- get_identity_json: replace DB fallback with Lazy Sync (generates JSON from DB if missing)
- Fixes missing/obsolete JSON files for all identity mutations

src/core/identity/storage.rs

@@ -18,6 +18,9 @@ pub struct IdentityFile {
     pub status: Option<String>,
     pub tmdb_id: Option<i32>,
     pub tmdb_profile: Option<String>,
+    /// Local profile image filename (e.g., "profile.jpg") if uploaded by user.
+    /// Overrides tmdb_profile if present.
+    pub local_profile: Option<String>,
     pub metadata: serde_json::Value,
     pub file_bindings: Vec<FileBinding>,
     pub created_at: String,
@@ -187,7 +190,7 @@ pub async fn save_identity_file_by_pool(pool: &sqlx::PgPool, uuid: &str) -> Resu
     let clean = uuid.replace('-', "");
     let record = sqlx::query_as::<_, crate::core::db::IdentityDetailRecord>(
         &format!(
-            "SELECT id, uuid::text, name, identity_type, source, status, metadata, reference_data, \
+            "SELECT id, uuid::text, COALESCE(real_name, actor_name, name) AS name, identity_type, source, status, metadata, reference_data, \
              NULL::real[] as voice_embedding, NULL::real[] as identity_embedding, \
              face_embedding::real[] as face_embedding, \
              tmdb_id, tmdb_profile, created_at::timestamptz as created_at, NULL::timestamptz as updated_at \
@@ -222,6 +225,14 @@ pub async fn save_identity_file_by_pool(pool: &sqlx::PgPool, uuid: &str) -> Resu
         })
         .collect();
 
+    // Check for local profile image
+    let profile_path = identity_dir(&clean).join("profile.jpg");
+    let local_profile = if profile_path.exists() {
+        Some("profile.jpg".to_string())
+    } else {
+        None
+    };
+
     let fmt_time = |dt: Option<chrono::DateTime<chrono::Utc>>| -> String {
         dt.map(|d| d.to_rfc3339())
             .unwrap_or_else(|| chrono::Utc::now().to_rfc3339())
@@ -236,6 +247,7 @@ pub async fn save_identity_file_by_pool(pool: &sqlx::PgPool, uuid: &str) -> Resu
         status: record.status,
         tmdb_id: record.tmdb_id,
         tmdb_profile: record.tmdb_profile,
+        local_profile,
         metadata: record.metadata,
         file_bindings,
         created_at: fmt_time(record.created_at),
@@ -349,6 +361,15 @@ pub async fn save_identity_file(db: &PostgresDb, uuid: &str) -> Result<()> {
         })
         .collect();
 
+    // Check for local profile image
+    let clean = uuid.replace('-', "");
+    let profile_path = identity_dir(&clean).join("profile.jpg");
+    let local_profile = if profile_path.exists() {
+        Some("profile.jpg".to_string())
+    } else {
+        None
+    };
+
     let fmt_time = |dt: Option<chrono::DateTime<chrono::Utc>>| -> String {
         dt.map(|d| d.to_rfc3339())
             .unwrap_or_else(|| chrono::Utc::now().to_rfc3339())
@@ -363,6 +384,7 @@ pub async fn save_identity_file(db: &PostgresDb, uuid: &str) -> Result<()> {
         status: record.status,
         tmdb_id: record.tmdb_id,
         tmdb_profile: record.tmdb_profile,
+        local_profile,
         metadata: record.metadata,
         file_bindings,
         created_at: fmt_time(record.created_at),