feat: implement telemetry system for application usage tracking

- Added telemetry utility to capture application events and metrics.
- Integrated PostHog for event tracking with distinct user identification.
- Implemented telemetry initialization, event capturing, and shutdown procedures.

feat: add UV environment setup for Python management

- Created utilities to manage Python installation and configuration.
- Implemented network optimization checks for Python installation mirrors.
- Added functions to set up managed Python environments with error handling.

feat: enhance host API communication with token management

- Introduced host API token retrieval and management for secure requests.
- Updated host API fetch functions to include token in headers.
- Added support for creating event sources with authentication.

test: add comprehensive tests for gateway protocol and startup helpers

- Implemented unit tests for gateway protocol helpers, event dispatching, and state management.
- Added tests for startup recovery strategies and process policies.
- Ensured coverage for connection monitoring and restart governance logic.

electron/gateway/startup-stderr.ts

@@ -0,0 +1,52 @@
+export type GatewayStderrClassification = {
+  level: 'drop' | 'debug' | 'warn';
+  normalized: string;
+};
+
+const MAX_STDERR_LINES = 120;
+
+export function classifyGatewayStderrMessage(message: string): GatewayStderrClassification {
+  const normalized = message.trim();
+  if (!normalized) {
+    return { level: 'drop', normalized };
+  }
+
+  if (normalized.includes('openclaw-control-ui') && normalized.includes('token_mismatch')) {
+    return { level: 'drop', normalized };
+  }
+  if (normalized.includes('closed before connect') && normalized.includes('token mismatch')) {
+    return { level: 'drop', normalized };
+  }
+  if (normalized.includes('[ws] closed before connect') && normalized.includes('code=1005')) {
+    return { level: 'debug', normalized };
+  }
+  if (normalized.includes('ExperimentalWarning')) {
+    return { level: 'debug', normalized };
+  }
+  if (normalized.includes('DeprecationWarning')) {
+    return { level: 'debug', normalized };
+  }
+  if (normalized.includes('Debugger attached')) {
+    return { level: 'debug', normalized };
+  }
+  if (normalized.includes('Config warnings:')) {
+    return { level: 'debug', normalized };
+  }
+  if (normalized.includes('node: --require is not allowed in NODE_OPTIONS')) {
+    return { level: 'debug', normalized };
+  }
+
+  return { level: 'warn', normalized };
+}
+
+export function recordGatewayStartupStderrLine(lines: string[], line: string): void {
+  const normalized = line.trim();
+  if (!normalized) {
+    return;
+  }
+
+  lines.push(normalized);
+  if (lines.length > MAX_STDERR_LINES) {
+    lines.splice(0, lines.length - MAX_STDERR_LINES);
+  }
+}