refactor: update multi-agent rules to TMUX & refactor MAM skills scripts

- Update .agents/MULTI_AGENT_RULES.md & .ko.md to align with TMUX concepts
- Add .agents/INSTALL.md guide for MAM setup and workflows
- Clean up legacy markdown reports under .agents/reports/
- Refactor MAM scripts in .agents/skills/ (rename resolve_herdr_session to resolve_herdr_workspace)
- Improve workspace pane splitting/re-use logic in lib.sh
- Reduce paste safety sleep in send_keys_safe and support linking ~/.claude.json

.agents/skills/multi-agent-mux-monitor/scripts/reconcile.sh

@@ -121,7 +121,7 @@ _changed = False
 for s in d.get('herdr_sessions', []):
     if s.get('delegate_job_id') == _jid and s.get('status') == 'running':
         _name = s.get('name')
-        _srv = s.get('herdr_session') or s.get('herdr_workspace') or s.get('herdr_server') or 'default'
+        _srv = s.get('herdr_workspace') or s.get('herdr_server') or 'default'
         if _event == 'completed':
             s['delegate_job_id'] = None
             print('MQTT Monitor: job completed on ' + str(_name) + ' — session kept alive', flush=True)
@@ -131,8 +131,7 @@ for s in d.get('herdr_sessions', []):
             s['terminated_at'] = _now.strftime('%Y-%m-%dT%H:%M:%SZ')
             s['terminated_at_epoch'] = int(_now.timestamp())
             s['termination_mode'] = 'auto-detected (MQTT ' + _event + ')'
-            _shim = os.path.join(os.environ.get('WORKSPACE_ROOT', os.getcwd()), '.mam/shim/herdr')
-            _cmd = [_shim] + (['-L', _srv] if _srv != 'default' else []) + ['kill-session', '-t', _name]
+            _cmd = ['herdr'] + (['-L', _srv] if _srv != 'default' else []) + ['kill-session', '-t', _name]
             subprocess.run(_cmd, capture_output=True)
             print('MQTT Monitor: terminated + killed ' + str(_name) + ' on ' + str(_srv) + ' due to MQTT ' + _event, flush=True)
             _changed = True
@@ -310,8 +309,6 @@ import yaml
 yaml_path = os.environ['YAML_PATH']
 home = os.environ['HOME_DIR']
 claude_project_dir = os.environ.get('CLAUDE_PROJECT_DIR', f"{home}/.claude/projects")
-workspace_root = os.environ.get('WORKSPACE_ROOT', os.getcwd())
-shim_herdr = os.path.join(workspace_root, '.mam/shim/herdr')
 
 now_iso = datetime.now(timezone.utc).strftime('%Y-%m-%dT%H:%M:%SZ')
 
@@ -345,12 +342,12 @@ unique_servers = {'default'}
 if 'HERDR_SERVER_NAME' in os.environ:
     unique_servers.add(os.environ['HERDR_SERVER_NAME'])
 for s in d.get('herdr_sessions', []):
-    srv = s.get('herdr_session') or s.get('herdr_workspace') or s.get('herdr_server') or 'default'
+    srv = s.get('herdr_workspace') or s.get('herdr_server') or 'default'
     unique_servers.add(srv)
 
 try:
     for srv in sorted(unique_servers):
-        cmd = [shim_herdr]
+        cmd = ['herdr']
         if srv != 'default':
             cmd += ['-L', srv]
         cmd += ['ls', '-F', '#{session_name}|#{session_created}']
@@ -372,7 +369,7 @@ except Exception:
 
 def pane_meta(session, srv):
     try:
-        cmd = [shim_herdr]
+        cmd = ['herdr']
         if srv != 'default':
             cmd += ['-L', srv]
         cmd += ['list-panes', '-t', session, '-F',
@@ -399,7 +396,7 @@ if herdr_confirmed:
         # (없으면 herdr-dead stopped 세션을 'terminated' 로 덮어써 resumable 플래그가 소실됨)
         if s.get('status') in ('terminated', 'archived', 'stopped'):
             continue
-        srv = s.get('herdr_session') or s.get('herdr_workspace') or s.get('herdr_server') or 'default'
+        srv = s.get('herdr_workspace') or s.get('herdr_server') or 'default'
         if (name, srv) not in alive_set:
             s['status'] = 'terminated'
             s['terminated_at'] = now_iso