v1.8.0: Update all documentation to match current state

Fixed 19 outdated occurrences across 7 files:
- public/index.html: 27→30 endpoints (6 occurrences)
- public/manifest.json: 27→30 endpoints
- README.md: 27→30 and 24→30 endpoints (7 occurrences)
- docs/index.md: 27→30 endpoints
- docs/architecture.md: 27→30 endpoints
- package.json: axios ^1.7.0→^1.8.0
- CHANGELOG.md: Added documentation update entry

package.json

@@ -11,7 +11,7 @@
   "author": "Sʜɪɴᴇɪ Nᴏᴜᴢᴇɴ",
   "license": "MIT",
   "dependencies": {
-    "axios": "^1.7.0",
+    "axios": "^1.8.0",
     "cheerio": "^1.0.0-rc.12",
     "cookie-parser": "^1.4.7",
     "cors": "^2.8.5",