feat(19-01): add tablo status column, batch progress query, and sqlc regen

- Add migration 0010_tablo_status.sql with reversible goose Up/Down
- Update all tablo SQL queries to include status column in SELECT/RETURNING/GROUP BY
- Add ListTabloProgressByIDs batch aggregation query (D-06)
- sqlc regenerated locally (files gitignored — regen via sqlc generate)

backend/internal/db/queries/tablos.sql

@@ -1,5 +1,5 @@
 -- name: ListTablosByUser :many
-SELECT id, user_id, title, description, color, created_at, updated_at
+SELECT id, user_id, title, description, color, created_at, updated_at, status
 FROM tablos
 WHERE user_id = $1
 ORDER BY created_at DESC;
@@ -12,6 +12,7 @@ SELECT tablos.id,
        tablos.color,
        tablos.created_at,
        tablos.updated_at,
+       tablos.status,
        COALESCE(count(unread_messages.id), 0)::bigint AS discussion_unread_count
 FROM tablos
 LEFT JOIN discussion_read_states AS read_state
@@ -27,24 +28,35 @@ LEFT JOIN discussion_messages AS unread_messages
       OR unread_messages.created_at > last_read_message.created_at
  )
 WHERE tablos.user_id = sqlc.arg(user_id)
-GROUP BY tablos.id, tablos.user_id, tablos.title, tablos.description, tablos.color, tablos.created_at, tablos.updated_at
+GROUP BY tablos.id, tablos.user_id, tablos.title, tablos.description, tablos.color, tablos.created_at, tablos.updated_at, tablos.status
 ORDER BY tablos.created_at DESC;
 
 -- name: GetTabloByID :one
-SELECT id, user_id, title, description, color, created_at, updated_at
+SELECT id, user_id, title, description, color, created_at, updated_at, status
 FROM tablos
 WHERE id = $1 AND user_id = $2;
 
 -- name: InsertTablo :one
 INSERT INTO tablos (user_id, title, description, color)
 VALUES ($1, $2, $3, $4)
-RETURNING id, user_id, title, description, color, created_at, updated_at;
+RETURNING id, user_id, title, description, color, created_at, updated_at, status;
 
 -- name: UpdateTablo :one
 UPDATE tablos
 SET title = $2, description = $3, color = $4, updated_at = now()
 WHERE id = $1
-RETURNING id, user_id, title, description, color, created_at, updated_at;
+RETURNING id, user_id, title, description, color, created_at, updated_at, status;
 
 -- name: DeleteTablo :exec
 DELETE FROM tablos WHERE id = $1 AND user_id = $2;
+
+-- name: ListTabloProgressByIDs :many
+-- Batch aggregation: one query for all tablos on the dashboard (D-06).
+-- Counts all tasks regardless of etape assignment.
+SELECT
+    tablo_id,
+    COUNT(*) FILTER (WHERE status = 'done')::int AS done_tasks,
+    COUNT(*)::int                                 AS total_tasks
+FROM tasks
+WHERE tablo_id = ANY(@tablo_ids::uuid[])
+GROUP BY tablo_id;

backend/migrations/0010_tablo_status.sql

@@ -0,0 +1,7 @@
+-- +goose Up
+ALTER TABLE tablos
+    ADD COLUMN status text NOT NULL DEFAULT 'active'
+    CHECK (status IN ('active', 'archived'));
+
+-- +goose Down
+ALTER TABLE tablos DROP COLUMN status;