refactor: remove expired plugin compatibility surfaces (#111451)

* docs(secrets): remove retired web credential paths

* refactor(web): remove retired provider compatibility paths

* refactor(providers): delete retired compatibility routes

* refactor(secrets): remove retired credential aliases

* refactor(plugin-sdk): delete retired compatibility surfaces

* docs(plugin-sdk): remove retired migration guidance

* chore(plugin-sdk): refresh rebased surface budgets

* chore(plugin-sdk): refresh API removal baseline

* refactor(compat): migrate retired internal callers

* chore(plugin-sdk): refresh current-main baselines

* test(config): migrate plugin-owned secret assertions

* test(gateway): narrow plugin secret refs

* fix(plugin-sdk): preserve private boundary type identity

* chore(compat): remove stale sweep references

* chore(lint): lower max-lines budget

* refactor(secrets): remove unused web helper

* build(plugin-sdk): drop removed compat entries

* chore(plugin-sdk): refresh rebased API baseline

* chore(plugin-sdk): use Linux API baseline hash

* fix(plugin-sdk): preserve private bundled build entries

* fix(plugin-sdk): package private runtime facades

* fix(plugins): preserve external credential contracts

extensions/nextcloud-talk/package.json

@@ -26,6 +26,14 @@
     "setupEntry": "./setup-entry.ts",
     "channel": {
       "id": "nextcloud-talk",
+      "configuredState": {
+        "env": {
+          "anyOf": [
+            "NEXTCLOUD_TALK_BOT_SECRET",
+            "NEXTCLOUD_TALK_API_PASSWORD"
+          ]
+        }
+      },
       "label": "Nextcloud Talk",
       "selectionLabel": "Nextcloud Talk (self-hosted)",
       "docsPath": "/channels/nextcloud-talk",