feat: skill expansion — browser, security, SQL, files (16 skills total)

Novas skills instaladas:
- openclaw-agent-browser   v1.0.0  CLI Chromium — navegação, login, screenshots, state
- skill-security-audit    v1.0.0  SAST scanning, prompt injection, secrets audit
- sql-toolkit             v1.0.0  PostgreSQL/MySQL/SQLite — schema, query, otimização
- file                    v1.0.0  Organização de arquivos por contexto
- file-summary            v1.0.0  Extração e resumo de PDFs, Word, Excel

Workspace expandido:
- TOOLS.md: +Browser automation, Security audit, SQL, File management
- AGENTS.md: +Linux Analyst section (comandos, logs, rede, scripts) + Full-stack strategy
- MEMORY.md: 16 skills indexadas, stack map, comandos Linux ref
- SESSION-STATE.md: atualizado com contexto completo
- lock.json: sincronizado com 16 skills instaladas

.clawhub/lock.json

@@ -24,6 +24,26 @@
     "nova-self-improver": {
       "version": "1.0.0",
       "installedAt": 1779233727234
+    },
+    "typescript": {
+      "version": "1.0.2",
+      "installedAt": 1779234199578
+    },
+    "xcloud-docker-deploy": {
+      "version": "1.2.1",
+      "installedAt": 1779234226417
+    },
+    "openclaw-config": {
+      "version": "0.1.0",
+      "installedAt": 1779234231608
+    },
+    "openclaw-power-ops": {
+      "version": "1.0.0",
+      "installedAt": 1779234237643
+    },
+    "openclaw-agent-browser": {
+      "version": "1.0.0",
+      "installedAt": 1779234569458
     }
   }
 }