release: 1.9.2: Review pass: port-25 milters, DMARC validation, rate-limit fix

Review pass over `1.4.0`…`1.9.1`: port 25 no longer shares the submission milter chain, DMARC reports are validated before they are stored, and the auto rate limit is correct for a non-default level-1 window. Schema migration `0010` (index only). Upgrading is a tag bump.
Added:
  - SQLite migration `0010_send_log_app_login_index.sql` —
  - DMARC aggregate reports are accepted as **zip** as well as gzip or plain XML
  - e2e: `checkPort25ConfigCombinations` regenerates the Postfix configuration
Changed:
  - README hero line and a **Positioning** block in `docs/product.md` record the
Fixed:
  - The setup account's password is hashed at bcrypt cost `12` like every other
  - Login/setup rate limiter: protecting blocked buckets from eviction is now
  - `postqueue -p` output is bounded to 4 MiB (the timeout alone left the size of
  - [schema-migrations.md](docs/schema-migrations.md): the schema section was
  - postqueue reader is now time-bounded: `postqueue -p` runs under a 5-second
  … (11 more in CHANGELOG)
Changed:
  - [roadmap.md](docs/roadmap.md) now carries everything the 2026-08-19 code
  - Extracted `internal/configsafe` — the empty-value and forbidden-character
  - Build, deploy and migration comments no longer cite the archived
  - Dropped the `parseDomainRateLimitForm` / `parseAppRateLimitForm` pass-through
  - Extracted shared helpers: `internal/atomicfile` (atomic temp-write+rename) and
  … (7 more in CHANGELOG)
Removed:
  - Unused legacy asset `docs/assets/icon.png` (superseded by the four brand SVGs
  - Plan documents for already-shipped features: `domain-stats-auto-ratelimit`,

Full detail: CHANGELOG.md (1.9.2).

internal/web/web.go

@@ -9,9 +9,9 @@ import (
 	"net/http"
 
 	"github.com/mixeme/selfpost/internal/app"
+	"github.com/mixeme/selfpost/internal/dmarc"
 	"github.com/mixeme/selfpost/internal/dnscheck"
 	"github.com/mixeme/selfpost/internal/domain"
-	"github.com/mixeme/selfpost/internal/dmarc"
 	"github.com/mixeme/selfpost/internal/health"
 	"github.com/mixeme/selfpost/internal/inbound"
 	"github.com/mixeme/selfpost/internal/legal"
@@ -118,21 +118,21 @@ func New(st *store.Store, domains *domain.Service, apps *app.Service, inboundSvc
 		TrustedProxyCIDRs: cfg.TrustedProxyCIDRs,
 	}, v, setupTokenPath)
 	h := handlers.New(st, domains, apps, inboundSvc, dmarcSvc, handlers.Config{
-		Hostname:               cfg.Hostname,
-		SubmissionEnabled:      cfg.SubmissionEnabled,
-		MailLogPath:            cfg.MailLogPath,
-		DataDir:                cfg.DataDir,
-		DBPath:                 cfg.DBPath,
-		DeployRoot:             cfg.DeployRoot,
-		Version:                cfg.Version,
-		TLSCertFile:            cfg.TLSCertFile,
-		OpenDKIMSocket:         cfg.OpenDKIMSocket,
-		JournalSocket:          cfg.JournalSocket,
-		RateLimitMessagesPerIP: cfg.RateLimitMessagesPerIP,
-		RateLimitWindowSeconds: cfg.RateLimitWindowSeconds,
-		RetryPolicy:                 cfg.RetryPolicy,
-		InboundEnabled:              cfg.InboundEnabled,
-		DMARCEnabled:                cfg.DMARCEnabled,
+		Hostname:                   cfg.Hostname,
+		SubmissionEnabled:          cfg.SubmissionEnabled,
+		MailLogPath:                cfg.MailLogPath,
+		DataDir:                    cfg.DataDir,
+		DBPath:                     cfg.DBPath,
+		DeployRoot:                 cfg.DeployRoot,
+		Version:                    cfg.Version,
+		TLSCertFile:                cfg.TLSCertFile,
+		OpenDKIMSocket:             cfg.OpenDKIMSocket,
+		JournalSocket:              cfg.JournalSocket,
+		RateLimitMessagesPerIP:     cfg.RateLimitMessagesPerIP,
+		RateLimitWindowSeconds:     cfg.RateLimitWindowSeconds,
+		RetryPolicy:                cfg.RetryPolicy,
+		InboundEnabled:             cfg.InboundEnabled,
+		DMARCEnabled:               cfg.DMARCEnabled,
 		SendLogRetentionEnvDefault: cfg.SendLogRetentionEnvDefault,
 	}, v, dnscheck.New(cfg.DNSResolvers), &health.MachineSampler{}, a)
 	return &Server{cfg: cfg, auth: a, handlers: h}, nil