CLI: add root --help fast path and lazy channel option resolution (#30975)

* CLI argv: add strict root help invocation guard

* Entry: add root help fast-path bootstrap bypass

* CLI context: lazily resolve channel options

* CLI context tests: cover lazy channel option resolution

* CLI argv tests: cover root help invocation detection

* Changelog: note additional startup path optimizations

* Changelog: split startup follow-up into #30975 entry

* CLI channel options: load precomputed startup metadata

* CLI channel options tests: cover precomputed metadata path

* Build: generate CLI startup metadata during build

* Build script: invoke CLI startup metadata generator

* CLI routes: preload plugins for routed health

* CLI routes tests: assert health plugin preload

* CLI: add experimental bundled entry and snapshot helper

* Tools: compare CLI startup entries in benchmark script

* Docs: add startup tuning notes for Pi and VM hosts

* CLI: drop bundled entry runtime toggle

* Build: remove bundled and snapshot scripts

* Tools: remove bundled-entry benchmark shortcut

* Docs: remove bundled startup bench examples

* Docs: remove Pi bundled entry mention

* Docs: remove VM bundled entry mention

* Changelog: remove bundled startup follow-up claims

* Build: remove snapshot helper script

* Build: remove CLI bundle tsdown config

* Doctor: add low-power startup optimization hints

* Doctor: run startup optimization hint checks

* Doctor tests: cover startup optimization host targeting

* Doctor tests: mock startup optimization note export

* CLI argv: require strict root-only help fast path

* CLI argv tests: cover mixed root-help invocations

* CLI channel options: merge metadata with runtime catalog

* CLI channel options tests: assert dynamic catalog merge

* Changelog: align #30975 startup follow-up scope

* Docs tests: remove secondary-entry startup bench note

* Docs Pi: add systemd recovery reference link

* Docs VPS: add systemd recovery reference link

src/cli/channel-options.ts

@@ -1,3 +1,6 @@
+import fs from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
 import { listChannelPluginCatalogEntries } from "../channels/plugins/catalog.js";
 import { listChannelPlugins } from "../channels/plugins/index.js";
 import { CHAT_CHANNEL_ORDER } from "../channels/registry.js";
@@ -17,14 +20,46 @@ function dedupe(values: string[]): string[] {
   return resolved;
 }
 
+let precomputedChannelOptions: string[] | null | undefined;
+
+function loadPrecomputedChannelOptions(): string[] | null {
+  if (precomputedChannelOptions !== undefined) {
+    return precomputedChannelOptions;
+  }
+  try {
+    const metadataPath = path.resolve(
+      path.dirname(fileURLToPath(import.meta.url)),
+      "..",
+      "cli-startup-metadata.json",
+    );
+    const raw = fs.readFileSync(metadataPath, "utf8");
+    const parsed = JSON.parse(raw) as { channelOptions?: unknown };
+    if (Array.isArray(parsed.channelOptions)) {
+      precomputedChannelOptions = dedupe(
+        parsed.channelOptions.filter((value): value is string => typeof value === "string"),
+      );
+      return precomputedChannelOptions;
+    }
+  } catch {
+    // Fall back to dynamic catalog resolution.
+  }
+  precomputedChannelOptions = null;
+  return null;
+}
+
 export function resolveCliChannelOptions(): string[] {
-  const catalog = listChannelPluginCatalogEntries().map((entry) => entry.id);
-  const base = dedupe([...CHAT_CHANNEL_ORDER, ...catalog]);
   if (isTruthyEnvValue(process.env.OPENCLAW_EAGER_CHANNEL_OPTIONS)) {
+    const catalog = listChannelPluginCatalogEntries().map((entry) => entry.id);
+    const base = dedupe([...CHAT_CHANNEL_ORDER, ...catalog]);
     ensurePluginRegistryLoaded();
     const pluginIds = listChannelPlugins().map((plugin) => plugin.id);
     return dedupe([...base, ...pluginIds]);
   }
+  const precomputed = loadPrecomputedChannelOptions();
+  const catalog = listChannelPluginCatalogEntries().map((entry) => entry.id);
+  const base = precomputed
+    ? dedupe([...precomputed, ...catalog])
+    : dedupe([...CHAT_CHANNEL_ORDER, ...catalog]);
   return base;
 }