fix(analysis): raise default ANALYSIS_MAX_TOKENS 900 -> 4096

A text-dense page's full analysis JSON exceeded the 900-token output cap,
so the model stopped mid-object (finish_reason: length) and the truncated
response failed to parse ("EOF while parsing a list"). The page image +
prompt are only a few hundred tokens, so a larger output budget still fits
comfortably in an 8k context window. Still overridable via
ANALYSIS_MAX_TOKENS.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mangalord-frontend",
-  "version": "0.77.0",
+  "version": "0.77.1",
   "private": true,
   "type": "module",
   "scripts": {