refactor: retire due compat-ledger surfaces (context-engine host params, deactivate alias, logging internals) (#121845)

* refactor(plugins): retire deactivate hook alias

* refactor(plugin-sdk): prune retired facade exports

* test(logging): isolate logger test controls

* refactor(logging): internalize file transport controls

* test(plugin-sdk): preserve retired facade coverage

* test(auto-reply): remove stale diagnostic imports

* refactor(logging): delete dead config-read guard

shouldSkipMutatingLoggingConfigRead had no production caller even on main;
it survived the dead-export scan only via logger's testApi re-export. The
test-isolation commit removed that mask, exposing the fossil. Delete the
guard, its test-only re-export, its mock entry, and its dedicated test file.

* refactor(plugin-sdk): retire due compatibility subpaths

* test(plugin-sdk): type group policy predicates

* refactor(plugin-sdk): split removed subpath records

* refactor(secrets): remove retired collector barrel

* test(plugin-sdk): tighten wildcard surface pin

* refactor(plugin-sdk): retire matrix facade metadata

* style(plugin-sdk): format facade metadata

* fix(ci): load channel setup contracts from source

Repair the main-owned regression from 99d662473c (Peter Steinberger): the new env-contract test could consume stale ignored dist metadata instead of the checked-in plugin declaration.

* test(plugin-sdk): refresh API baseline after rebase

docs/.generated/plugin-sdk-api-baseline/channel-plugin-common.json

@@ -1 +1 @@
-{"contentHash":"aa9a880fa3abde607a3664e55cf6bd35966528d436c0438aa3c1b7607c8e46e7","entrypoint":"channel-plugin-common","importSpecifier":"openclaw/plugin-sdk/channel-plugin-common"}
+{"contentHash":"034d00199482a5490cb8202aa2ff6c5acd438486e8ab616b5f76674af7fb78c4","entrypoint":"channel-plugin-common","importSpecifier":"openclaw/plugin-sdk/channel-plugin-common"}