fix: validate platform keys at the gate and stop auto-register

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/util/platforms.py

@@ -337,8 +337,8 @@ def resolve_platform_key(name: str) -> Optional[str]:
 
 
 def is_valid_platform_key_format(name: str) -> bool:
-    """平台 key 格式：^[a-z0-9][a-z0-9_-]{1,63}$"""
-    s = (name or "").strip().lower()
+    """平台 key 格式：^[a-z0-9][a-z0-9_-]{1,63}$（不大小写折叠；登记必须本身已是小写）。"""
+    s = (name or "").strip()
     if not s:
         return False
     return bool(PLATFORM_KEY_PATTERN.match(s))
@@ -367,87 +367,11 @@ class PlatformResolveResult:
         return bool(self.platform_key) and not self.error_code
 
 
-def _resolve_platform_from_db(conn, raw: str) -> PlatformResolveResult:
-    """在 platforms 表中解析：精确 key（enabled=1）与 aliases_json。"""
-    raw_stripped = (raw or "").strip()
-    raw_lower = raw_stripped.lower()
-
-    if is_valid_platform_key_format(raw_stripped):
-        row = conn.execute(
-            "SELECT platform_key, enabled FROM platforms WHERE platform_key = ?",
-            (raw_lower,),
-        ).fetchone()
-        if row:
-            if not row[1]:
-                return PlatformResolveResult(
-                    error_code="PLATFORM_DISABLED",
-                    message=f"平台 {row[0]} 已禁用。",
-                )
-            return PlatformResolveResult(platform_key=row[0])
-
-    rows = conn.execute(
-        "SELECT platform_key, enabled, aliases_json FROM platforms"
-    ).fetchall()
-    for platform_key, enabled, aliases_json in rows:
-        if not enabled:
-            continue
-        names = {platform_key.lower()}
-        for alias in _parse_aliases_json(aliases_json):
-            names.add(alias.lower())
-            names.add(alias)
-        if raw_lower in names or raw_stripped in names:
-            return PlatformResolveResult(platform_key=platform_key)
-
-    return PlatformResolveResult()
-
-
 def resolve_platform_key_dynamic(input_name: str, conn=None) -> PlatformResolveResult:
-    """
-    统一平台解析：内置 PLATFORMS → DB platforms 表 → 错误分类。
-    """
-    raw = (input_name or "").strip()
-    if not raw:
-        return PlatformResolveResult(
-            error_code="INVALID_PLATFORM",
-            message="平台名不能为空。",
-        )
+    """引用已有平台（键 / 唯一展示名或别名）。实现见 util.platform_validate。"""
+    from util.platform_validate import resolve_platform_ref
 
-    builtin = resolve_platform_key(raw)
-    if builtin:
-        return PlatformResolveResult(platform_key=builtin)
-
-    close_conn = False
-    if conn is None:
-        from db.connection import get_conn, init_db
-
-        init_db()
-        conn = get_conn()
-        close_conn = True
-    try:
-        db_result = _resolve_platform_from_db(conn, raw)
-        if db_result.ok or db_result.error_code:
-            return db_result
-    finally:
-        if close_conn:
-            conn.close()
-
-    if not is_valid_platform_key_format(raw):
-        return PlatformResolveResult(
-            error_code="INVALID_PLATFORM_KEY",
-            message=(
-                f"平台 key 格式非法：「{raw}」。"
-                "建议使用小写字母、数字、下划线或连字符，例如 jiangchang。"
-            ),
-        )
-
-    key_hint = raw.lower()
-    return PlatformResolveResult(
-        error_code="PLATFORM_NOT_REGISTERED",
-        message=(
-            f"平台 {key_hint} 尚未注册，请先执行 "
-            f"account platform ensure --key {key_hint} --display-name <名称> [--url <url>]"
-        ),
-    )
+    return resolve_platform_ref(input_name, conn)
 
 
 def get_platform_spec(platform_key: str, conn=None) -> dict[str, Any]: