fix(security+seo): harden nginx headers, add SEO meta, robots/sitemap, error monitor - #8
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fix(security+seo): harden nginx headers, add SEO meta, robots/sitemap, error monitor#8TThranduil1 wants to merge 2 commits into
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…, error monitor - nginx: server_tokens off, full CSP, HSTS+preload, Referrer-Policy, Permissions-Policy; remove deprecated X-XSS-Protection and X-Frame-Options - nginx: serve robots.txt and sitemap.xml from public/ - index.html: add description/keywords/og:*/twitter:*/canonical/JSON-LD - public/robots.txt + sitemap.xml for SEO crawlability - src/core/error_monitor.js: window.onerror + unhandledrejection + resource errors + trade/strategy crash reporting, batched to /api/v2/errors - main.js: import error_monitor first so it catches all downstream errors
- New Vue pages: src/views/legal/UserAgreement.vue (10 sections, covers AI disclaimer, trading risk, martingale warning, prohibited use) - New Vue pages: src/views/legal/PrivacyPolicy.vue (11 sections, data collection table, AES-256 encryption, user rights, data retention) - router.config.js: register /legal/* under BlankLayout, hidden from nav - permission.js: add UserAgreement + PrivacyPolicy to allowList so the legal pages are accessible without login (required for compliance) These pages are referenced by the backend brand-config legal URLs (/legal/user-agreement, /legal/privacy-policy) and the UserLayout footer privacy link.
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Aug 13, 2026
…wire guard into order gateway
### Platform-level risk guard (app/services/risk_guard.py)
- New RiskGuard module: 5 hard rules — drawdown halt (default 20%),
single-symbol position ratio cap (30%), martingale layer/leverage
lock (6 layers / 4x), order notional + ratio cap (100k / 10%),
sliding-window rate limit (20 orders/60s)
- All thresholds configurable via RISK_GUARD_* env vars
- Thread-safe singleton (RiskGuard.shared())
- Fail-open design: if account snapshot is unavailable, guard skips
rather than blocking trading
### Frontend error monitoring endpoint (app/routes/error_reports.py)
- POST /api/v2/errors — receives batched frontend error events
(window.onerror, unhandledrejection, resource errors, trade/strategy
crashes). No auth (errors can happen pre-login). Rate-limited by
payload size cap (50 events/batch, 4k chars/field)
- GET /api/v2/errors/stats — lightweight ops counter
- Registered in openapi/register.py + tags.py as ErrorReports tag
### Risk guard integration (app/services/strategy_v2/live_execution.py)
- StrategyV2OrderGateway.submit() now calls _check_risk_guard() after
_validate() and before persisting the pending order
- Fetches best-effort account snapshot to evaluate drawdown/position
ratio; infers martingale state from action prefix
- Blocked orders raise ValueError('strategyV2.riskGuardBlocked: ...')
so the caller can surface the reason to the AI strategy review
Related frontend PR: OpenByteInc/QuantDinger-Vue#8 (error_monitor.js
reports to this /api/v2/errors endpoint)
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Summary
Fixes the top security, SEO, and frontend observability gaps found in a live audit of https://quant.kai.com/.
Security (nginx)
server_tokens off— stop leakingnginx/1.28.3 (Ubuntu)versiondefault-src 'self'; script-src 'self'; ...) replacing the oldframe-ancestors 'self'onlyincludeSubDomains; preload(was baremax-age)Referrer-Policy: strict-origin-when-cross-originPermissions-Policy: camera=(), microphone=(), geolocation=(), interest-cohort=()X-XSS-ProtectionandX-Frame-Options(CSP supersedes them)SEO
index.html: adddescription,keywords,og:*,twitter:*,canonical,JSON-LD(SoftwareApplication schema),preconnectto API domainpublic/robots.txt+public/sitemap.xml(were returning SPA HTML shell)robots.txtandsitemap.xmlas static filesFrontend error monitoring
src/core/error_monitor.js: captureswindow.onerror,unhandledrejection, resource load failures (capture phase), withreportTradeFailure()andreportStrategyCrash()entry points. Batched (10s) + offline queue +keepaliveflush.main.js: import error_monitor first so it catches all downstream errors. Reports toPOST /api/v2/errors.Files changed
deploy/nginx-docker.conf.template(Docker production)deploy/nginx-docker.confdeploy/nginx.confindex.htmlpublic/robots.txt(new)public/sitemap.xml(new)src/core/error_monitor.js(new)src/main.jsNot in this PR (separate follow-ups)
legaldefaults (branding.py) — tracked in the backend repoChecklist