fix(claudbg-j9az): populate model from DB in TUI session list

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.beans/claudbg-j9az--tui-model-column-always-blank-in-sessions-list.md

@@ -1,10 +1,11 @@
 ---
 # claudbg-j9az
 title: 'TUI: model column always blank in sessions list'
-status: todo
+status: in-progress
 type: bug
+priority: normal
 created_at: 2026-04-01T06:10:52Z
-updated_at: 2026-04-01T06:10:52Z
+updated_at: 2026-04-01T06:12:23Z
 ---
 
 The Model column in the TUI session-list screen is always empty. Root cause: when building SessionListItem in src/tui/run.rs the model field is set to String::new(), and the DB enrichment query (SELECT session_id, project_path, message_count FROM sessions) does not fetch the model column. The model field does exist in the sessions DB table. Fix: add model to the enrichment SELECT and populate item.model during the enrichment loop.

src/tui/run.rs

@@ -226,7 +226,8 @@ pub fn run_tui() -> Result<()> {
     // Enrich session list with data from the DB cache (message counts and
     // fallback project paths for sessions whose JSONL first line has no cwd).
     // Best-effort: silently skip if the DB is missing or unreadable.
-    let db_enrichment: HashMap<String, (String, usize)> = tokio::task::block_in_place(|| {
+    let db_enrichment: HashMap<String, (String, usize, String)> = tokio::task::block_in_place(
+        || {
             tokio::runtime::Handle::current().block_on(async {
             let db_path = crate::db::connection::default_db_path();
             let db = match crate::db::connection::open_db(&db_path, false).await {
@@ -239,7 +240,7 @@ pub fn run_tui() -> Result<()> {
             };
             let mut rows = match conn
                 .query(
-                    "SELECT session_id, COALESCE(project_path, ''), message_count FROM sessions",
+                    "SELECT session_id, COALESCE(project_path, ''), message_count, COALESCE(model, '') FROM sessions",
                     (),
                 )
                 .await
@@ -247,7 +248,7 @@ pub fn run_tui() -> Result<()> {
                 Ok(r) => r,
                 Err(_) => return HashMap::new(),
             };
-            let mut map: HashMap<String, (String, usize)> = HashMap::new();
+            let mut map: HashMap<String, (String, usize, String)> = HashMap::new();
             while let Ok(Some(row)) = rows.next().await {
                 let sid: String = match row.get(0) {
                     Ok(v) => v,
@@ -255,17 +256,22 @@ pub fn run_tui() -> Result<()> {
                 };
                 let project: String = row.get(1).unwrap_or_default();
                 let count: i64 = row.get(2).unwrap_or(0);
-                map.insert(sid, (project, count as usize));
+                let model: String = row.get(3).unwrap_or_default();
+                map.insert(sid, (project, count as usize, model));
             }
             map
         })
-    });
+        },
+    );
     for item in &mut state.sessions {
-        if let Some((db_project, db_count)) = db_enrichment.get(&item.full_id) {
+        if let Some((db_project, db_count, db_model)) = db_enrichment.get(&item.full_id) {
             if item.project.is_empty() && !db_project.is_empty() {
                 item.project = db_project.clone();
             }
             item.msg_count = *db_count;
+            if item.model.is_empty() && !db_model.is_empty() {
+                item.model = db_model.clone();
+            }
         }
     }