test(profiles): cover a v0.15-v0.17 secondary profile without history (#390)

The released-states loop stops at v0.10-v0.14 (state E). State F, the
consolidated schema of v0.15.0 to v0.17.0 without a history, only had
its floor checked; this test runs the whole preparation on it: history
recorded up to v17, nothing applied, no copy, flag repaired.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src-tauri/src/database/profile_db.rs

@@ -851,6 +851,30 @@ mod tests {
         }
     }
 
+    #[test]
+    fn a_profile_from_v0_15_to_v0_17_gets_its_history_and_nothing_else() {
+        // State F: created with the current consolidated schema, before #390
+        // wrote a history. Nothing to apply, so no copy either; the flag is
+        // still repaired.
+        let dir = unique_dir("state-f");
+        let path = create_db(&dir, SECONDARY, &[crate::database::CONSOLIDATED_SCHEMA]);
+        let category = seed_user_rows(&open(&path));
+
+        let report = prepare_at(&path, SECONDARY, &migrations()).unwrap();
+
+        assert_eq!(report.catch_up_error, None);
+        let done = report.catch_up.unwrap();
+        assert_eq!(done.floor, Some(17));
+        assert_eq!(done.recorded, versions(1, max_version()));
+        assert!(done.applied.is_empty());
+        assert_eq!(done.backup_file, None);
+        assert_eq!(report.repaired_flags, 1);
+        let conn = open(&path);
+        assert_history_complete(&conn, "state F");
+        assert_eq!(count(&conn, "SELECT category_id FROM transactions"), category);
+        assert!(!dir.join(MIGRATION_BACKUP_DIR).exists());
+    }
+
     #[test]
     fn the_bilan_data_of_a_v0_9_profile_is_converted() {
         for state in released_states().into_iter().filter(|s| s.floor == 10) {