feat(installer): revamp install flow with i18n

cli/commands/install.py

@@ -118,9 +118,11 @@ def run_install_browser(
         0 on success, 1 on fatal failure (pip or chromium install failed).
     """
     from cli.utils import get_cli_language
-    from common import i18n
 
+    # Import `common` only after get_cli_language() runs ensure_sys_path(),
+    # so it works when `cow` is invoked from outside the project directory.
     get_cli_language()  # resolve cow_lang so i18n.t reflects config
+    from common import i18n
     _t = i18n.t
 
     stream = stream or _default_stream

cli/commands/process.py

@@ -276,9 +276,12 @@ def status():
     """Show CowAgent running status."""
     from cli import __version__
     from cli.utils import load_config_json, get_cli_language
-    from common import i18n
 
+    # get_cli_language() calls ensure_sys_path(), which adds the project root
+    # to sys.path. Import `common` only AFTER that, otherwise it fails with
+    # ModuleNotFoundError when `cow` runs from outside the project dir.
     get_cli_language()  # resolve cow_lang so i18n.t reflects config
+    from common import i18n
     _t = i18n.t
 
     pid = _read_pid()

cli/commands/skill.py

@@ -518,9 +518,11 @@ def _install_targz_bytes(content: bytes, name: str, skills_dir: str, result: Ins
 def _print_install_success(name: str, source: str):
     """Print a unified install success message with description and source."""
     from cli.utils import get_cli_language
-    from common import i18n
 
+    # Import `common` only after get_cli_language() runs ensure_sys_path(),
+    # so it works when `cow` is invoked from outside the project directory.
     get_cli_language()  # resolve cow_lang so i18n.t reflects config
+    from common import i18n
     _t = i18n.t
 
     skills_dir = get_skills_dir()