refactor(db): thread context.Context through all Store methods

Enables request-scoped cancellation, timeouts, and graceful shutdown
for all database operations across API handlers, CLI commands, and TUI.

cmd/edit.go

@@ -21,19 +21,19 @@ func init() {
 	rootCmd.AddCommand(editCmd)
 }
 
-func runEdit(_ *cobra.Command, args []string) error {
+func runEdit(cmd *cobra.Command, args []string) error {
 	store, err := openStore()
 	if err != nil {
 		return err
 	}
 	defer store.Close()
 
-	id, err := store.Resolve(args[0])
+	id, err := store.Resolve(cmd.Context(), args[0])
 	if err != nil {
 		return fmt.Errorf("not_found — no entity with id %s", args[0])
 	}
 
-	e, err := store.Get(id)
+	e, err := store.Get(cmd.Context(), id)
 	if err != nil {
 		return err
 	}
@@ -55,11 +55,11 @@ func runEdit(_ *cobra.Command, args []string) error {
 		editor = "vi"
 	}
 
-	cmd := exec.Command(editor, tmpfile.Name())
-	cmd.Stdin = os.Stdin
-	cmd.Stdout = os.Stdout
-	cmd.Stderr = os.Stderr
-	if err := cmd.Run(); err != nil {
+	editorCmd := exec.Command(editor, tmpfile.Name())
+	editorCmd.Stdin = os.Stdin
+	editorCmd.Stdout = os.Stdout
+	editorCmd.Stderr = os.Stderr
+	if err := editorCmd.Run(); err != nil {
 		return fmt.Errorf("editor: %w", err)
 	}
 
@@ -74,7 +74,7 @@ func runEdit(_ *cobra.Command, args []string) error {
 		return nil
 	}
 
-	if err := store.Update(id, &db.EntityUpdate{Body: &body}); err != nil {
+	if err := store.Update(cmd.Context(), id, &db.EntityUpdate{Body: &body}); err != nil {
 		return err
 	}