fix(plugins): lazily initialize runtime and split plugin-sdk startup imports (#28620)

Merged via squash.

Prepared head SHA: 8bd7d6c13b070f86bd4d5c45286c1ceb1a3f9f80
Co-authored-by: hmemcpy <601206+hmemcpy@users.noreply.github.com>
Co-authored-by: gumadeiras <5599352+gumadeiras@users.noreply.github.com>
Reviewed-by: @gumadeiras

tsconfig.plugin-sdk.dts.json

@@ -12,6 +12,8 @@
   },
   "include": [
     "src/plugin-sdk/index.ts",
+    "src/plugin-sdk/core.ts",
+    "src/plugin-sdk/telegram.ts",
     "src/plugin-sdk/account-id.ts",
     "src/plugin-sdk/keyed-async-queue.ts",
     "src/types/**/*.d.ts"