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

package.json

@@ -451,10 +451,6 @@
       "types": "./dist/plugin-sdk/channel-setup.d.ts",
       "default": "./dist/plugin-sdk/channel-setup.js"
     },
-    "./plugin-sdk/channel-streaming": {
-      "types": "./dist/plugin-sdk/channel-streaming.d.ts",
-      "default": "./dist/plugin-sdk/channel-streaming.js"
-    },
     "./plugin-sdk/channel-streaming-config": {
       "types": "./dist/plugin-sdk/channel-streaming-config.d.ts",
       "default": "./dist/plugin-sdk/channel-streaming-config.js"
@@ -704,10 +700,6 @@
     "./plugin-sdk/thread-bindings-session-runtime": {
       "default": "./dist/plugin-sdk/thread-bindings-session-runtime.js"
     },
-    "./plugin-sdk/text-runtime": {
-      "types": "./dist/plugin-sdk/text-runtime.d.ts",
-      "default": "./dist/plugin-sdk/text-runtime.js"
-    },
     "./plugin-sdk/text-chunking": {
       "types": "./dist/plugin-sdk/text-chunking.d.ts",
       "default": "./dist/plugin-sdk/text-chunking.js"
@@ -745,10 +737,6 @@
       "types": "./dist/plugin-sdk/channel-secret-basic-runtime.d.ts",
       "default": "./dist/plugin-sdk/channel-secret-basic-runtime.js"
     },
-    "./plugin-sdk/channel-secret-runtime": {
-      "types": "./dist/plugin-sdk/channel-secret-runtime.d.ts",
-      "default": "./dist/plugin-sdk/channel-secret-runtime.js"
-    },
     "./plugin-sdk/channel-secret-tts-runtime": {
       "default": "./dist/plugin-sdk/channel-secret-tts-runtime.js"
     },
@@ -881,10 +869,6 @@
     "./plugin-sdk/account-resolution-runtime": {
       "default": "./dist/plugin-sdk/account-resolution-runtime.js"
     },
-    "./plugin-sdk/agent-config-primitives": {
-      "types": "./dist/plugin-sdk/agent-config-primitives.d.ts",
-      "default": "./dist/plugin-sdk/agent-config-primitives.js"
-    },
     "./plugin-sdk/access-groups": {
       "default": "./dist/plugin-sdk/access-groups.js"
     },
@@ -947,10 +931,6 @@
       "types": "./dist/plugin-sdk/discord.d.ts",
       "default": "./dist/plugin-sdk/discord.js"
     },
-    "./plugin-sdk/matrix": {
-      "types": "./dist/plugin-sdk/matrix.d.ts",
-      "default": "./dist/plugin-sdk/matrix.js"
-    },
     "./plugin-sdk/device-bootstrap": {
       "types": "./dist/plugin-sdk/device-bootstrap.d.ts",
       "default": "./dist/plugin-sdk/device-bootstrap.js"
@@ -1020,10 +1000,6 @@
       "types": "./dist/plugin-sdk/channel-inbound-debounce.d.ts",
       "default": "./dist/plugin-sdk/channel-inbound-debounce.js"
     },
-    "./plugin-sdk/channel-logging": {
-      "types": "./dist/plugin-sdk/channel-logging.d.ts",
-      "default": "./dist/plugin-sdk/channel-logging.js"
-    },
     "./plugin-sdk/channel-mention-gating": {
       "default": "./dist/plugin-sdk/channel-mention-gating.js"
     },
@@ -1125,10 +1101,6 @@
     "./plugin-sdk/group-activation": {
       "default": "./dist/plugin-sdk/group-activation.js"
     },
-    "./plugin-sdk/group-access": {
-      "types": "./dist/plugin-sdk/group-access.d.ts",
-      "default": "./dist/plugin-sdk/group-access.js"
-    },
     "./plugin-sdk/global-singleton": {
       "default": "./dist/plugin-sdk/global-singleton.js"
     },
@@ -1472,10 +1444,6 @@
       "types": "./dist/plugin-sdk/web-media.d.ts",
       "default": "./dist/plugin-sdk/web-media.js"
     },
-    "./plugin-sdk/zod": {
-      "types": "./dist/plugin-sdk/zod.d.ts",
-      "default": "./dist/plugin-sdk/zod.js"
-    },
     "./plugin-sdk/agent-core": {
       "default": "./dist/plugin-sdk/agent-core.js"
     },