* fix(security): add HSTS and Permissions-Policy headers to SecurityHeadersMiddleware
Strict-Transport-Security is sent only when the connection is HTTPS
(detected via request.url.scheme or X-Forwarded-Proto: https), so
plain-HTTP dev deployments behind a reverse proxy are unaffected.
Permissions-Policy disables camera, microphone, and geolocation APIs
unconditionally — Odysseus does not use them, and this prevents a
successful XSS from requesting browser-native sensor access.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(security): scope Permissions-Policy microphone directive to same-origin
Reviewers on PR #3081 (alteixeira20, NubsCarson) flagged that
microphone=() blocks mic access for same-origin (self) too, breaking
Odysseus's own voice/STT flow (getUserMedia({audio: true}) in
static/js/voiceRecorder.js). Scope it to microphone=(self) so
third-party origins stay locked out while the app's own UI keeps mic
access; camera and geolocation remain fully disabled as unused.
Adds focused middleware tests covering HSTS scoping (HTTPS direct,
X-Forwarded-Proto, absent on plain HTTP) and the Permissions-Policy
same-origin microphone contract.
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Giuseppe