ACP: harden startup and move configured routing behind plugin seams (#48197)

* ACPX: keep plugin-local runtime installs out of dist

* Gateway: harden ACP startup and service PATH

* ACP: reinitialize error-state configured bindings

* ACP: classify pre-turn runtime failures as session init failures

* Plugins: move configured ACP routing behind channel seams

* Telegram tests: align startup probe assertions after rebase

* Discord: harden ACP configured binding recovery

* ACP: recover Discord bindings after stale runtime exits

* ACPX: replace dead sessions during ensure

* Discord: harden ACP binding recovery

* Discord: fix review follow-ups

* ACP bindings: load channel snapshots across workspaces

* ACP bindings: cache snapshot channel plugin resolution

* Experiments: add ACP pluginification holy grail plan

* Experiments: rename ACP pluginification plan doc

* Experiments: drop old ACP pluginification doc path

* ACP: move configured bindings behind plugin services

* Experiments: update bindings capability architecture plan

* Bindings: isolate configured binding routing and targets

* Discord tests: fix runtime env helper path

* Tests: fix channel binding CI regressions

* Tests: normalize ACP workspace assertion on Windows

* Bindings: isolate configured binding registry

* Bindings: finish configured binding cleanup

* Bindings: finish generic cleanup

* Bindings: align runtime approval callbacks

* ACP: delete residual bindings barrel

* Bindings: restore legacy compatibility

* Revert "Bindings: restore legacy compatibility"

This reverts commit ac2ed68fa2426ecc874d68278c71c71ad363fcfe.

* Tests: drop ACP route legacy helper names

* Discord/ACP: fix binding regressions

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Co-authored-by: Onur <2453968+osolmaz@users.noreply.github.com>

src/test-utils/channel-plugins.ts

@@ -35,6 +35,7 @@ export const createTestRegistry = (channels: TestChannelRegistration[] = []): Pl
   cliRegistrars: [],
   services: [],
   commands: [],
+  conversationBindingResolvedHandlers: [],
   diagnostics: [],
 });