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/package.json

@@ -10,14 +10,17 @@
     "type-check": "vue-tsc --noEmit"
   },
   "dependencies": {
+    "dompurify": "^3.1.0",
+    "marked": "^12.0.0",
     "pinia": "^2.1.7",
     "vue": "^3.4.0",
     "vue-router": "^4.3.0"
   },
   "devDependencies": {
+    "@types/dompurify": "^3.0.5",
     "@vitejs/plugin-vue": "^5.0.4",
     "typescript": "^5.4.0",
-    "vite": "^5.2.0",
+    "vite": "^8.0.16",
     "vue-tsc": "^2.0.6"
   }
 }