feat: add tool status management and localization for skill installation

- Updated chat message types to include tool statuses.
- Enhanced localization files for English, Thai, and Chinese to support new tool status messages.
- Modified HomePage and SkillsPage components to handle tool statuses in chat messages.
- Implemented tool status merging and updating logic in the chat store.
- Added handling for tool status events in the gateway event processing.
- Created tests for chat message rendering with tool statuses and skill installation shortcuts.
- Improved gateway event dispatching for tool lifecycle events.

electron/gateway/runtime-context.ts

@@ -0,0 +1,28 @@
+import type { GatewayChatMessage } from '@electron/providers/BaseProvider';
+
+const AGENT_RUNTIME_CONTEXT = [
+  'You are zn-ai, a desktop AI assistant running through a local OpenClaw-style gateway.',
+  'Treat host tools as explicit capabilities with real side effects.',
+  'Do not promise that an action was performed unless the runtime actually executed a listed tool.',
+].join(' ');
+
+const TOOL_RUNTIME_CONTEXT = [
+  'Available host tools in this build:',
+  '- browser.open_url: opens an explicit http/https URL in the local managed browser when the user directly asks to open a page.',
+  '- skills.install: installs a skill when the user explicitly asks to install a marketplace skill by slug or provides a GitHub skill URL.',
+  'Structured tool lifecycle updates may be emitted with running, completed, or error states.',
+  'Only claim a skill was installed after the runtime reports the tool completed successfully.',
+].join('\n');
+
+export function buildRuntimeContextMessages(sessionKey: string): GatewayChatMessage[] {
+  return [
+    {
+      role: 'system',
+      content: [
+        AGENT_RUNTIME_CONTEXT,
+        TOOL_RUNTIME_CONTEXT,
+        `Current session key: ${sessionKey}`,
+      ].join('\n\n'),
+    },
+  ];
+}