Add system memory monitoring, Bedrock support, and Discord integrations

- Add CPU/GPU memory monitoring endpoint and frontend widget
- Add Amazon Bedrock model support (API key / inference profiles) plus model selector entries
- Add Discord weather/laundry notification job (JMA forecast + LLM-generated message)
- Add Discord bot that replies to mentions via the configured LLM, with weather-aware context
- Add scheduled "useless tips" job with separate webhook and quiet-hours skip
- Switch FastAPI startup to lifespan handler, log viewer, markdown rendering, and toast UI additions

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

frontend/vite.config.ts

@@ -6,8 +6,19 @@ export default defineConfig({
   server: {
     port: 5173,
     proxy: {
-      '/chat': 'http://localhost:8000',
+      '/chat': {
+        target: 'http://localhost:8000',
+        changeOrigin: true,
+        // SSE ストリーミングのバッファリングを無効化
+        configure: (proxy) => {
+          proxy.on('proxyRes', (proxyRes) => {
+            proxyRes.headers['x-accel-buffering'] = 'no'
+          })
+        },
+      },
+      '/api': 'http://localhost:8000',
       '/memory': 'http://localhost:8000',
+      '/logs': 'http://localhost:8000',
       '/health': 'http://localhost:8000',
     },
   },