release: 0.5.0: Pre-1.0 security review, domain-admin role, doc consolidation

A bounce could be recorded as a successful delivery. The log-tailer's
Fixed:
  - A bounce could be recorded as a successful delivery. The log-tailer's
  - Log-tailer resumes where it stopped instead of jumping to end-of-file on
  - Level-2 rate limit no longer overshoots under concurrency: messages that
Changed:
  - The project has a single public home: `github.com/mixeme/selfpost`. Codeberg
  - Code comments no longer cite the archived specification. References like
  - `docs/code-review.md` is gone. Its plan is finished — phases 0 (bar the
  - `docs/architecture.md` gained a *Code layers* section: a diagram of
  - Phase 1 doc/code hygiene (`docs/code-review.md`): removed ~30 stale
  … (1 more in CHANGELOG)
Security:
  - Pre-release security review (plan § D, model Fable, 2026-08-06): full pass
  - `saslpasswd2` argv: the application login is now passed after a `--`
Added:
  - Optional password encryption for the two secret-bearing downloads (plan
  - Domain import accepts an encrypted export: the envelope is detected by its
  - `selfpost-backup` writes encrypted archives and reads them back:
  - `TestParseDelivery` covers the exotic mail.log shapes the review asked for
  - docs: README *Encrypting a backup or export*; `docs/security.md` §
  … (14 more in CHANGELOG)
Removed:
  - docs: `security.md` — accepted risk «restore old backup revives session rows»
Changed:
  - docs: `implementation-plan.md` trimmed to the sole open v1.x gate — pre-release
  - docs: `architecture.md` — sessions (SQLite, idle renew, password change),
  - docs: `development.md` — expanded e2e stack and `release.yml` matrix workflow.
  - docs: `security.md` — accepted risk for send-log rows stuck at `queued` after
  - docs: `roadmap.md` — optional send-log / `mail.log` follow-ups under v1.x tail.
  … (10 more in CHANGELOG)

Full detail: CHANGELOG.md (0.5.0).

internal/web/setup.go

@@ -7,17 +7,17 @@ import (
 	"sync"
 	"time"
 
-	"codeberg.org/mix/selfpost/internal/store"
+	"github.com/mixeme/selfpost/internal/store"
 )
 
-// setupTokenTTL is the lifetime of a setup token (spec 7.6.1). After it
+// setupTokenTTL is the lifetime of a setup token (security.md). After it
 // elapses the token is regenerated and re-announced on the next /setup hit.
 const setupTokenTTL = 10 * time.Minute
 
 // setupManager owns the one-time administrator setup token. The token itself is
 // ephemeral (regenerated on restart or expiry) and lives only in memory; the
 // persistent "setup complete" fact is the presence of the admin row in the
-// store, so once that exists the token is gone for good (spec 7.6.1).
+// store, so once that exists the token is gone for good (security.md).
 type setupManager struct {
 	store     *store.Store
 	hostname  string
@@ -71,8 +71,8 @@ func (m *setupManager) activeToken() (string, bool) {
 
 // validate reports whether provided matches the active token, using a
 // constant-time comparison to avoid leaking a correct prefix via timing
-// (spec 7.6.1). A mismatch does NOT regenerate or invalidate the token: failed
-// attempts must not let an attacker DoS a legitimate setup (spec 7.6.1).
+// (security.md). A mismatch does NOT regenerate or invalidate the token: failed
+// attempts must not let an attacker DoS a legitimate setup (security.md).
 func (m *setupManager) validate(provided string) bool {
 	token, ok := m.activeToken()
 	if !ok {
@@ -94,13 +94,13 @@ func (m *setupManager) complete() {
 // regenerateLocked mints a fresh token, announces it and mirrors it to disk.
 // Caller holds m.mu.
 func (m *setupManager) regenerateLocked() {
-	m.token = randomToken(16) // 128 bits of entropy (spec 7.6.1)
+	m.token = randomToken(16) // 128 bits of entropy (security.md)
 	m.expiresAt = time.Now().Add(setupTokenTTL)
 	m.announce(m.token)
 }
 
 // announce prints the setup link to the container log and writes it to the
-// token file so it can be read either way (spec 7.6.1).
+// token file so it can be read either way (security.md).
 func (m *setupManager) announce(token string) {
 	url := m.setupURL(token)
 	logf("panel: ==================================================================")