fix: remove all hardcoded user paths from plugins — dynamic SDK resolution

- plugins/macp/src/index.ts: use createRequire + dynamic import() for OC SDK
- plugins/macp/src/acp-runtime-types.ts: local ACP runtime type definitions
- plugins/macp/src/macp-runtime.ts: DEFAULT_REPO_ROOT and PI_RUNNER_PATH use
  os.homedir() instead of hardcoded /home/user/
- plugins/mosaic-framework/src/index.ts: removed hardcoded SDK import
- No hardcoded /home/ paths remain in any plugin source file
- Plugin works on any machine with openclaw installed globally

plugins/macp/src/macp-runtime.ts

@@ -13,7 +13,7 @@ import type {
   AcpRuntimeHandle,
   AcpRuntimeStatus,
   AcpRuntimeTurnInput,
-} from '/home/woltjejason/.npm-global/lib/node_modules/openclaw/dist/plugin-sdk/acp-runtime.js';
+} from './acp-runtime-types.js';
 
 export interface MacpRuntimeConfig {
   defaultModel: string;
@@ -80,9 +80,9 @@ const MACP_CAPABILITIES: AcpRuntimeCapabilities = {
   controls: [],
 };
 
-const DEFAULT_REPO_ROOT = '~/src/mosaic-stack-new';
+const DEFAULT_REPO_ROOT = '~/src/mosaic-stack';
 const ORCHESTRATOR_RUN_PATH = '~/.config/mosaic/bin/mosaic-orchestrator-run';
-const PI_RUNNER_PATH = '/home/woltjejason/src/mosaic-stack-new/tools/macp/dispatcher/pi_runner.ts';
+const PI_RUNNER_PATH = path.join(os.homedir(), 'src', 'mosaic-stack', 'tools', 'macp', 'dispatcher', 'pi_runner.ts');
 
 function expandHome(rawPath: string): string {
   if (rawPath === '~') {