fix(telegram): restore model-switch success path + author map

The cherry-picked PR over-indented the edit_message_text block for
the mm: (model selected → switch) success path so the confirmation
edit lived inside the preceding 'except Exception as exc' branch and
only fired when the callback raised. Dedent the try/except back to
12-space indent so it runs after the callback succeeds, restoring
the original flow that removes the inline buttons and shows the
'Switched to ...' confirmation.

Add a regression test (test_model_selected_edits_message_on_success)
that asserts edit_message_text is awaited and the result text is
routed through format_message (MARKDOWN_V2 + backtick survival).

Add phuongvm to scripts/release.py AUTHOR_MAP.

gateway/platforms/telegram.py

@@ -2534,22 +2534,22 @@ class TelegramAdapter(BasePlatformAdapter):
                 result_text = f"Error switching model: {exc}"
 
             # Edit message to show confirmation, remove buttons
+            try:
+                await query.edit_message_text(
+                    text=self.format_message(result_text),
+                    parse_mode=ParseMode.MARKDOWN_V2,
+                    reply_markup=None,
+                )
+            except Exception:
+                # Markdown parse failure — retry as plain text
                 try:
                     await query.edit_message_text(
-                        text=self.format_message(result_text),
-                        parse_mode=ParseMode.MARKDOWN_V2,
+                        text=result_text,
+                        parse_mode=None,
                         reply_markup=None,
                     )
                 except Exception:
-                    # Markdown parse failure — retry as plain text
-                    try:
-                        await query.edit_message_text(
-                            text=result_text,
-                            parse_mode=None,
-                            reply_markup=None,
-                        )
-                    except Exception:
-                        pass
+                    pass
             await query.answer(text="Model switched!")
 
             # Clean up state