CLI: streamline startup paths and env parsing

Add shared parseBooleanValue()/isTruthyEnvValue() and apply across CLI, gateway, memory, and live-test flags for consistent env handling.
Introduce route-first fast paths, lazy subcommand registration, and deferred plugin loading to reduce CLI startup overhead.
Centralize config validation via ensureConfigReady() and add config caching/deferred shell env fallback for fewer IO passes.
Harden logger initialization/imports and add focused tests for argv, boolean parsing, frontmatter, and CLI subcommands.

src/cli/program/message/helpers.ts

@@ -4,6 +4,7 @@ import { danger, setVerbose } from "../../../globals.js";
 import { CHANNEL_TARGET_DESCRIPTION } from "../../../infra/outbound/channel-target.js";
 import { defaultRuntime } from "../../../runtime.js";
 import { createDefaultDeps } from "../../deps.js";
+import { ensureConfigReady } from "../config-guard.js";
 
 export type MessageCliHelpers = {
   withMessageBase: (command: Command) => Command;
@@ -30,6 +31,7 @@ export function createMessageCliHelpers(
     command.requiredOption("-t, --target <dest>", CHANNEL_TARGET_DESCRIPTION);
 
   const runMessageAction = async (action: string, opts: Record<string, unknown>) => {
+    await ensureConfigReady({ runtime: defaultRuntime, migrateState: true });
     setVerbose(Boolean(opts.verbose));
     const deps = createDefaultDeps();
     try {