Fix bugs and add code coverage

src/coding_agent_telegram/config.py

@@ -80,7 +80,10 @@ def _parse_allowed_chat_ids() -> set[int]:
 
     out: set[int] = set()
     for item in values:
-        out.add(int(item))
+        try:
+            out.add(int(item))
+        except ValueError:
+            raise ValueError(f"Invalid chat ID in ALLOWED_CHAT_IDS: {item!r}") from None
     return out
 
 

src/coding_agent_telegram/router/session_branch_resolution.py

@@ -26,47 +26,6 @@ def _branch_discrepancy_keyboard(self, update: Update, stored_branch: str, curre
             ]
         )
 
-    def _multi_branch_source_keyboard(
-        self,
-        *,
-        new_branch: str,
-        source_branches: list[str],
-        project_path,
-    ) -> InlineKeyboardMarkup | None:
-        rows: list[list[InlineKeyboardButton]] = []
-        seen: set[tuple[str, str]] = set()
-        for source_branch in source_branches:
-            if not source_branch:
-                continue
-            row: list[InlineKeyboardButton] = []
-            if self.git.local_branch_exists(project_path, source_branch):
-                key = ("local", source_branch)
-                if key not in seen:
-                    token = self._register_branch_source_token("local", source_branch, new_branch)
-                    row.append(
-                        InlineKeyboardButton(
-                            f"local/{source_branch}",
-                            callback_data=f"branchsource:{token}",
-                        )
-                    )
-                    seen.add(key)
-            if self.git.remote_branch_exists(project_path, source_branch):
-                key = ("origin", source_branch)
-                if key not in seen:
-                    token = self._register_branch_source_token("origin", source_branch, new_branch)
-                    row.append(
-                        InlineKeyboardButton(
-                            f"origin/{source_branch}",
-                            callback_data=f"branchsource:{token}",
-                        )
-                    )
-                    seen.add(key)
-            if row:
-                rows.append(row)
-        if not rows:
-            return None
-        return InlineKeyboardMarkup(rows)
-
     async def _offer_branch_source_fallback(
         self,
         query,

src/coding_agent_telegram/router/session_lifecycle_commands.py

@@ -129,6 +129,9 @@ async def _create_session_for_context(
             stall_message=self._t(update, "runtime.replacement_session_stall"),
         )
 
+        if result is None:
+            return False
+
         if not result.success or not result.session_id:
             await send_text(update, context, result.error_message or self._t(update, "lifecycle.failed_create_session"))
             return False

src/coding_agent_telegram/session_runtime.py

@@ -28,7 +28,7 @@
 )
 from coding_agent_telegram.filters import is_sensitive_path, resolve_project_path
 from coding_agent_telegram.git_utils import GitWorkspaceManager
-from coding_agent_telegram.i18n import translate
+from coding_agent_telegram.i18n import locale_from_update, translate
 from coding_agent_telegram.session_store import SessionStore
 from coding_agent_telegram.telegram_sender import (
     markdownish_to_html,
@@ -129,12 +129,12 @@ async def store_photo(self, update: Update, project_folder: str) -> Path:
         telegram_photo = update.message.photo[-1]
         declared_size = getattr(telegram_photo, "file_size", None)
         if isinstance(declared_size, int) and declared_size > self.MAX_PHOTO_BYTES:
-            raise PhotoAttachmentError("photo_too_large", translate("en", "runtime.photo_too_large"))
+            raise PhotoAttachmentError("photo_too_large", translate(locale_from_update(update), "runtime.photo_too_large"))
 
         telegram_file = await telegram_photo.get_file()
         content = bytes(await telegram_file.download_as_bytearray())
         if len(content) > self.MAX_PHOTO_BYTES:
-            raise PhotoAttachmentError("photo_too_large", translate("en", "runtime.photo_too_large"))
+            raise PhotoAttachmentError("photo_too_large", translate(locale_from_update(update), "runtime.photo_too_large"))
         suffix = Path(telegram_file.file_path or "image.jpg").suffix.lower() or ".jpg"
         if suffix not in {".jpg", ".jpeg", ".png", ".webp", ".gif"}:
             suffix = ".jpg"