fix(plugin-sdk): remove relative extension boundary escapes (#51939)

* fix(plugin-sdk): remove relative extension boundary escapes

* Gate new plugin-sdk subpaths on host version

* Add changelog entry for #51939

* Fix local staging for plugin-sdk host version gate

* Raise host floor for line and googlechat plugins

---------

Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

scripts/lib/plugin-sdk-entrypoints.json

@@ -45,12 +45,14 @@
   "account-resolution",
   "allow-from",
   "allowlist-config-edit",
+  "bluebubbles",
   "boolean-param",
   "command-auth",
   "device-bootstrap",
   "diagnostics-otel",
   "diffs",
   "discord",
+  "discord-core",
   "extension-shared",
   "channel-config-helpers",
   "channel-config-schema",
@@ -63,13 +65,30 @@
   "channel-policy",
   "channel-send-result",
   "channel-targets",
+  "feishu",
   "group-access",
   "directory-runtime",
+  "googlechat",
+  "image-generation",
+  "imessage",
+  "imessage-core",
+  "irc",
+  "reply-history",
+  "media-understanding",
+  "request-url",
+  "runtime-store",
   "json-store",
   "keyed-async-queue",
+  "line",
+  "line-core",
   "llm-task",
+  "matrix",
+  "mattermost",
   "memory-core",
   "memory-lancedb",
+  "msteams",
+  "nextcloud-talk",
+  "nostr",
   "provider-auth",
   "provider-auth-api-key",
   "provider-auth-login",
@@ -83,20 +102,25 @@
   "provider-usage",
   "provider-web-search",
   "provider-zai-endpoint",
-  "image-generation",
-  "reply-history",
-  "media-understanding",
-  "request-url",
-  "webhook-ingress",
-  "webhook-path",
-  "runtime-store",
-  "status-helpers",
   "secret-input",
-  "thread-ownership",
-  "web-media",
-  "zalo",
-  "zalouser",
+  "signal",
+  "slack",
+  "slack-core",
+  "status-helpers",
   "speech",
   "state-paths",
-  "tool-send"
+  "telegram",
+  "telegram-core",
+  "thread-ownership",
+  "tlon",
+  "tool-send",
+  "twitch",
+  "webhook-ingress",
+  "webhook-path",
+  "web-media",
+  "voice-call",
+  "whatsapp-core",
+  "whatsapp-shared",
+  "zalo",
+  "zalouser"
 ]