feat(filter): add cleanupExcludedOnStart option to delete stale objects

When enabled, on each adapter start the adapter scans all existing
hass.0.entities.* channels and deletes those whose entity_id matches
any of the configured excludePatterns. This complements the existing
filter (which only prevents new objects from being created) by also
cleaning up objects that were synced before the filter was activated
or before the patterns were extended.

Safety:
- Channels (and any of their sub-states) holding common.custom config
  (history/influxdb/sql) are kept and a warning is logged so the user
  can decide manually.
- Existing deleteStaleObjects() 50% sanity-guard is intentionally NOT
  applied here — the user explicitly opted in to the cleanup.
- Per-id deletion only logs when verboseFilterLog is also active.

Default is false (opt-in). Adds new admin checkbox + i18n keys for all
11 languages (machine translations for non-en/de still pending).

admin/i18n/zh-cn.json

@@ -8,5 +8,7 @@
     "Exclude patterns (one per line)": "排除模式（每行一个）",
     "Glob patterns, * wildcard. Lines starting with # are comments. Empty = filter off.": "Glob 模式，* 通配符。以 # 开头的行是注释。为空 = 过滤器关闭。",
     "Verbose filter logging": "详细过滤器日志",
-    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "启用后，在适配器初始同步期间单独记录每个被排除的 entity_id（需要日志级别 info 或 debug）。"
-}
+    "When enabled, log each excluded entity_id individually during the initial adapter sync (requires loglevel info or debug).": "启用后，在适配器初始同步期间单独记录每个被排除的 entity_id（需要日志级别 info 或 debug）。",
+    "Cleanup excluded entities on adapter start": "Cleanup excluded entities on adapter start",
+    "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged.": "When enabled, on each adapter start delete existing objects under entities.* whose entity_id matches the exclude patterns. Objects with custom adapter config (history/influxdb/sql) are kept and logged."
+}