fix(config): treat empty .env values with inline # comments as empty

src/jiangchang_skill_core/config.py

@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import os
+import re
 import shutil
 from typing import Any
 
@@ -15,6 +16,29 @@ _user_env_cache: dict[str, str] | None = None
 _example_defaults_cache: dict[str, str] | None = None
 
 
+def _parse_env_value(raw_value: str) -> str:
+    """Parse one .env value: strip quotes / trailing comments; empty+# → \"\"."""
+    value = raw_value if raw_value is not None else ""
+    stripped = value.strip()
+    if not stripped:
+        return ""
+
+    # Quoted values keep interior content (including #).
+    if len(stripped) >= 2 and stripped[0] == stripped[-1] and stripped[0] in ('"', "'"):
+        return stripped[1:-1]
+
+    # Unquoted: ``KEY=   # comment`` or ``KEY=# comment`` must be empty, not the comment text.
+    # Also strip ``KEY=value # comment``. Keep ``KEY=https://x/#y`` (no whitespace before #).
+    if re.search(r"(^|\s)#", value):
+        # Split at first whitespace-#-comment or whole-value comment.
+        m = re.match(r"^(.*?)\s+#.*$", value)
+        if m is not None:
+            return m.group(1).strip()
+        if stripped.startswith("#"):
+            return ""
+    return stripped
+
+
 def _parse_env_file(path: str) -> dict[str, str]:
     """标准库手写 .env 解析（不引 python-dotenv）。"""
     result: dict[str, str] = {}
@@ -29,14 +53,9 @@ def _parse_env_file(path: str) -> dict[str, str]:
                 continue
             key, _, value = line.partition("=")
             key = key.strip()
-            value = value.strip()
             if not key:
                 continue
-            if len(value) >= 2 and value[0] == value[-1] and value[0] in ('"', "'"):
-                value = value[1:-1]
-            elif " #" in value:
-                value = value.split(" #", 1)[0].strip()
-            result[key] = value
+            result[key] = _parse_env_value(value)
     return result