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/context.ts

@@ -1,9 +1,5 @@
-import { listChannelPlugins } from "../../channels/plugins/index.js";
-import { resolveAgentWorkspaceDir, resolveDefaultAgentId } from "../../agents/agent-scope.js";
-import { loadConfig } from "../../config/config.js";
-import { createSubsystemLogger } from "../../logging.js";
-import { loadClawdbotPlugins } from "../../plugins/loader.js";
 import { VERSION } from "../../version.js";
+import { resolveCliChannelOptions } from "../channel-options.js";
 
 export type ProgramContext = {
   programVersion: string;
@@ -12,26 +8,8 @@ export type ProgramContext = {
   agentChannelOptions: string;
 };
 
-const log = createSubsystemLogger("plugins");
-
-function primePluginRegistry() {
-  const config = loadConfig();
-  const workspaceDir = resolveAgentWorkspaceDir(config, resolveDefaultAgentId(config));
-  loadClawdbotPlugins({
-    config,
-    workspaceDir,
-    logger: {
-      info: (msg) => log.info(msg),
-      warn: (msg) => log.warn(msg),
-      error: (msg) => log.error(msg),
-      debug: (msg) => log.debug(msg),
-    },
-  });
-}
-
 export function createProgramContext(): ProgramContext {
-  primePluginRegistry();
-  const channelOptions = listChannelPlugins().map((plugin) => plugin.id);
+  const channelOptions = resolveCliChannelOptions();
   return {
     programVersion: VERSION,
     channelOptions,