docs/chore: Phase 1 doc/code hygiene (code-review.md § Phase 1)

Removes ~30 stale "Phase N" / historical-staging comment references from
code and shell scripts now that v1.0 is done; fixes a stale dashboard
comment claiming applications/send-log were unimplemented; adds a CSRF ADR
to security.md documenting the Origin-check-over-tokens decision; resolves
docs/logo in roadmap.md (directory doesn't exist, criterion already met);
adds a gofmt -l check to CI so unformatted Go fails the build.

The known-limitations write-up for the log-tailer offset gap (the other
Phase 1 item) was already present in architecture.md § Log tailer, so no
change was needed there.

gofmt/go vet/go test clean on both Go modules (main + test/e2e), verified
on the dev server.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

build/Dockerfile

@@ -13,8 +13,7 @@ WORKDIR /src
 # Version stamped into both binaries; MUST match the image tag (spec 7.5.A).
 ARG VERSION=dev
 
-# Module metadata first for layer caching. go.sum arrived in Phase 2 with the
-# SQLite driver and bcrypt.
+# Module metadata first for layer caching.
 COPY go.mod go.sum ./
 RUN go mod download
 
@@ -36,7 +35,7 @@ FROM debian:bookworm-slim AS runtime
 ENV DEBIAN_FRONTEND=noninteractive
 
 # Preseed Postfix so its install is non-interactive and yields a working
-# main.cf. The real relay configuration is generated by the panel in Phase 5.
+# main.cf. The real relay configuration is generated by the panel.
 RUN echo "postfix postfix/mailname string localhost" | debconf-set-selections \
  && echo "postfix postfix/main_mailer_type string Internet Site" | debconf-set-selections \
  && apt-get update \

build/entrypoint.sh

@@ -36,7 +36,7 @@ find /data/opendkim/keys -type f -name '*.private' -exec chmod 0640 {} +
 # sasldb2 via saslpasswd2; Postfix (user `postfix`) reads it to authenticate SMTP
 # clients. Share it through the `selfpost` group the same way as the DKIM tree:
 # setgid directory so new files inherit the group, and the database itself
-# group-readable (0640). Postfix wiring to actually consult it lands in Phase 5.
+# group-readable (0640).
 mkdir -p /data/sasl
 chown -R panel:selfpost /data/sasl
 chmod 2750 /data/sasl
@@ -51,9 +51,9 @@ chown -R panel:selfpost /data/postfix
 chmod 2750 /data/postfix
 chmod 0640 /data/postfix/sender_login_maps
 
-# Milter socket directories (spec 5 p.3, 7.3). From Phase 5 Postfix (user
-# `postfix`) must actually CONNECT to both milter sockets — OpenDKIM's and the
-# panel's journal-milter — not just probe them at start-up. The sockets are
+# Milter socket directories (spec 5 p.3, 7.3). Postfix (user `postfix`) must
+# actually CONNECT to both milter sockets — OpenDKIM's and the panel's
+# journal-milter — not just probe them at start-up. The sockets are
 # created by the opendkim and panel users respectively, so bridge them to
 # `postfix` through the shared `selfpost` group: group-owned + setgid dirs mean
 # each socket created inside inherits group `selfpost`, and group-traversable

build/postfix-config.sh

@@ -106,7 +106,7 @@ postconf -e \
 	"smtpd_sender_restrictions=reject_sender_login_mismatch, permit"
 
 # Level-1 rate limit by client IP (spec 5 p.5). Backstop that keeps working even
-# if the journal-milter (level 2, Phase 8) is down.
+# if the journal-milter (level 2) is down.
 postconf -e \
 	"smtpd_client_message_rate_limit=${RATE_MSGS}" \
 	"anvil_rate_time_unit=${RATE_WINDOW}s"

build/postfix-wrapper.sh

@@ -8,7 +8,7 @@
 # an explicit startup failure instead of a relay running blind.
 #
 # This handles cold start only. Runtime milter failures after a successful start
-# are governed by fail-open (milter_default_action), configured in Phase 5.
+# are governed by fail-open (milter_default_action).
 set -eu
 
 OPENDKIM_SOCK="${OPENDKIM_SOCKET:-/run/opendkim/opendkim.sock}"