Implements D-025 (revised 2026-10-15) and D-043.
Setup gate (D-025):
- Remove the bind refusal (CheckSetupBind/ErrNonLoopbackSetup/server.IsLoopback);
Serve binds any address, so the app can listen on 0.0.0.0:8080 behind Zoraxy.
- The gate is now per request and strict (httpx.SetupRequestAllowed): a loopback
TCP peer AND no X-Forwarded-For — the direct SSH tunnel. Anything else is 404
before dispatch; an unparseable peer fails closed (AC-7/AC-10). The raw XFF is
read before ClientIP SETS it (A6).
Proxy scheme (D-043):
- httpx.RequestIsHTTPS resolves the scheme per request: direct TLS, or a trusted
proxy's X-Forwarded-Proto. The door carries it on the request context
(httpx.WithSecure) so the session cookie, its __Host- prefix, the pre-session
and ceremony cookies, and HSTS all agree (AC-13).
- Over plain http (the tunnel) cookies stay bare and non-Secure, which fixes the
bootstrap from an https:// config.example.yaml; Config.IsSecure() is removed
as now dead.
Tests: rewrite the setup-gate tests for AC-7/AC-10, add AC-13, and unit-test
SetupRequestAllowed / RequestIsHTTPS.
REVIEW-001 (M0) M1s: the /setup wizard's pre-session double-submit ceremony
(A15) was signed with csrf_key/cookie_secret left at the shipped CHANGE_ME
placeholder until `finish` persisted generated values — a publicly-known
signing key for the whole bootstrap.
Generate strong ephemeral values at startup in setup mode, mirroring the
TOTP key (R-6/D-1): `finish` skips a non-placeholder, so the wizard persists
the very values the process already uses.
Also add cmd/myday's first test — REVIEW-001 M2c: the D-1 invariant (the
startup TOTP key is the persisted key) was covered only by a manual smoke. It
generates the key, enrolls a secret, persists via the wizard, reopens the DB
with the persisted key and asserts the secret still unseals.
Wires the door: config → store → migrations → the discovered module registry →
nav into the shell → the reserved `static` workflow → serve. Generates the TOTP
sealing key at startup in setup mode (SPEC-009 D-1) so the wizard's TOTP
enrollment precedes Finish. Fails closed on a bad module set.
