v2.9.0 — Settings overhaul, Mistral parallel tool fix, Anthropic provider

- Fix settings save bug: primaryModel captured before _modelSettingsLoaded guard → wiped model roles when models tab not opened
- Fix server: filter empty-string roles before saving to prevent role wipe
- Add Voice and Session settings tabs to UI
- Add OpenWeather API key field to Credentials tab
- Add GET/POST endpoints: /api/settings/voice, /api/settings/session, /api/settings/openweather
- Fix Mistral parallel tool calls: model embeds tool calls as text instead of tool_calls array; parseEmbeddedToolCalls() detects and converts
- Add Anthropic provider adapter (anthropic-adapter.ts)
- Weather tool vault key resolution fix

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/tools/weather.ts

@@ -2,6 +2,7 @@ import fs from 'fs';
 import path from 'path';
 import os from 'os';
 import { ToolResult } from '../types.js';
+import { getVault } from '../security/vault.js';
 
 const OW_BASE = 'https://api.openweathermap.org/data/2.5';
 
@@ -11,9 +12,20 @@ function getApiKey(): string | undefined {
     const cfgPath = fs.existsSync(projectCfg)
       ? projectCfg
       : path.join(os.homedir(), '.smallclaw', 'config.json');
+    const configDir = path.dirname(cfgPath);
     if (fs.existsSync(cfgPath)) {
       const data = JSON.parse(fs.readFileSync(cfgPath, 'utf-8'));
-      return data.openweather?.api_key || data.weather?.api_key;
+      let raw = data.openweather?.api_key || data.weather?.api_key;
+      // Resolve vault reference (e.g. "vault:openweather.api_key")
+      if (typeof raw === 'string' && raw.startsWith('vault:')) {
+        const vaultKey = raw.slice('vault:'.length);
+        const entry = getVault(configDir).get(vaultKey, 'weather:getkey');
+        return entry?.expose();
+      }
+      if (raw) return raw;
+      // Key may be in vault without a config reference
+      const entry = getVault(configDir).get('openweather.api_key', 'weather:getkey');
+      return entry?.expose();
     }
   } catch {}
   return undefined;