ci: make beta a branch-triggered freeze track, not a one-off tag

Beta is now a real stabilization branch: publishes on every push to
`beta` (mirroring dev's model, auto-versioned X.Y.Z-beta.<ts>+<sha>,
base version from the latest published tag) instead of a manual
beta-v* tag. Fixes made during the freeze land via fix/<issue> branches
merged into `beta` directly. The gen-index.sh clone for beta pulls
bread-ecosystem's default branch (main) rather than pinning to dev,
since beta is the more stable track and main now carries the
TRACK-aware script.

.forgejo/workflows/beta-bakery.yml

@@ -1,11 +1,17 @@
 name: beta bakery
 
-# Publishes a beta-track build when a `beta-v*` tag is pushed — a deliberate
+# Publishes a beta-track build on every push to `beta` — a frozen
-# promotion step (you pick the version string and the commit), distinct from
+# stabilization branch cut from `dev` when ready to stabilize; only
-# dev-bakery.yml's automatic build-on-every-push. See docs/release-channels.md.
+# fix/<issue> branches merged into `beta` should land here afterward.
+# See docs/release-channels.md for the three-track policy (stable/beta/dev).
 on:
   push:
-    tags: ['beta-v*']
+    branches: ['beta']
+    paths:
+      - 'bakery/**'
+      - 'Cargo.toml'
+      - 'Cargo.lock'
+      - '.forgejo/workflows/beta-bakery.yml'
 
 jobs:
   build:
@@ -15,7 +21,7 @@ jobs:
         run: |
           set -euo pipefail
           rm -rf src && mkdir src
-          git clone --branch "${GITHUB_REF_NAME}" --depth 1 \
+          git clone --branch beta --depth 1 \
             "https://git.breadway.dev/${GITHUB_REPOSITORY}.git" src
 
       - name: build
@@ -24,10 +30,36 @@ jobs:
       - name: test
         run: cd src && cargo test --release --locked -p bakery
 
+      # Auto-bumps the patch version from the latest tag and appends a
+      # timestamp+sha beta suffix — no developer discipline required, and the
+      # result is visibly "ahead of" the last stable patch release while
+      # staying valid semver (comparable within the beta track by bakery's
+      # `is_newer`).
+      - name: compute beta version
+        run: |
+          set -euo pipefail
+          cd src
+          # Base the beta version off the latest published stable tag,
+          # not Cargo.toml — Cargo.toml can go stale relative to the last
+          # real release (seen in practice: breadbox/breadpad/breadcrumbs/
+          # breadpaper), which would make a beta build sort as OLDER than
+          # what's already installed and bakery would correctly refuse it.
+          LATEST_TAG="$(git ls-remote --tags --refs \
+            "https://git.breadway.dev/${GITHUB_REPOSITORY}.git" 'v*' \
+            | awk -F/ '{print $NF}' | sed 's/^v//' | sort -V | tail -1)"
+          if [ -n "${LATEST_TAG}" ]; then
+            CUR="${LATEST_TAG}"
+          else
+            CUR="$(grep -m1 '^version' Cargo.toml | sed -E 's/.*"(.*)".*/\1/')"
+          fi
+          IFS='.' read -r MA MI PA <<< "${CUR}"
+          SHA="$(git rev-parse --short HEAD)"
+          TS="$(date -u +%Y%m%d%H%M%S)"
+          echo "VERSION=${MA}.${MI}.$((PA + 1))-beta.${TS}+${SHA}" >> "$GITHUB_ENV"
+
       - name: prepare artifacts
         run: |
           set -euo pipefail
-          VERSION="${GITHUB_REF_NAME#beta-v}"
           PKG_DIR="/srv/breadway-dl/beta/bakery/${VERSION}"
           mkdir -p "${PKG_DIR}"
           cp "src/target/release/bakery" "${PKG_DIR}/bakery-x86_64"
@@ -42,7 +74,6 @@ jobs:
           MINISIGN_SEC_KEY: ${{ secrets.BAKERY_MINISIGN_SEC_KEY_PATH }}
         run: |
           set -euo pipefail
-          VERSION="${GITHUB_REF_NAME#beta-v}"
           PKG_DIR="/srv/breadway-dl/beta/bakery/${VERSION}"
           if [ -n "${MINISIGN_SEC_KEY:-}" ]; then
             minisign -W -S -s "${MINISIGN_SEC_KEY}" -m "${PKG_DIR}/bakery-x86_64" \
@@ -52,8 +83,9 @@ jobs:
             echo "::warning::BAKERY_MINISIGN_SEC_KEY_PATH not set — shipping bakery-x86_64 UNSIGNED"
           fi
 
-      # No GitHub Release upload — beta, like dev, is only distributed via
+      # No GitHub Release upload step here, unlike release-bakery.yml — beta
-      # dl.breadway.dev/beta/.
+      # builds happen on every push while the branch is frozen for testing,
+      # so dl.breadway.dev/beta/ is the only distribution point for this track.
       - name: regenerate beta index.json
         env:
           MINISIGN_SEC_KEY: ${{ secrets.BAKERY_MINISIGN_SEC_KEY_PATH }}

.forgejo/workflows/beta-bread-theme.yml

@@ -1,11 +1,17 @@
 name: beta bread-theme
 
-# Publishes a beta-track build when a `beta-v*` tag is pushed — a deliberate
+# Publishes a beta-track build on every push to `beta` — a frozen
-# promotion step, distinct from dev-bread-theme.yml's build-on-every-push.
+# stabilization branch cut from `dev` when ready to stabilize; only
-# See docs/release-channels.md.
+# fix/<issue> branches merged into `beta` should land here afterward.
+# See docs/release-channels.md for the three-track policy this is part of.
 on:
   push:
-    tags: ['beta-v*']
+    branches: ['beta']
+    paths:
+      - 'bread-theme/**'
+      - 'Cargo.toml'
+      - 'Cargo.lock'
+      - '.forgejo/workflows/beta-bread-theme.yml'
 
 jobs:
   build:
@@ -15,16 +21,37 @@ jobs:
         run: |
           set -euo pipefail
           rm -rf src && mkdir src
-          git clone --branch "${GITHUB_REF_NAME}" --depth 1 \
+          git clone --branch beta --depth 1 \
             "https://git.breadway.dev/${GITHUB_REPOSITORY}.git" src
 
       - name: build
         run: cd src && cargo build --release --locked -p bread-theme --bin bread-theme
 
+      - name: compute beta version
+        run: |
+          set -euo pipefail
+          cd src
+          # Base the beta version off the latest published stable tag,
+          # not Cargo.toml — Cargo.toml can go stale relative to the last
+          # real release (seen in practice: breadbox/breadpad/breadcrumbs/
+          # breadpaper), which would make a beta build sort as OLDER than
+          # what's already installed and bakery would correctly refuse it.
+          LATEST_TAG="$(git ls-remote --tags --refs \
+            "https://git.breadway.dev/${GITHUB_REPOSITORY}.git" 'v*' \
+            | awk -F/ '{print $NF}' | sed 's/^v//' | sort -V | tail -1)"
+          if [ -n "${LATEST_TAG}" ]; then
+            CUR="${LATEST_TAG}"
+          else
+            CUR="$(grep -m1 '^version' Cargo.toml | sed -E 's/.*"(.*)".*/\1/')"
+          fi
+          IFS='.' read -r MA MI PA <<< "${CUR}"
+          SHA="$(git rev-parse --short HEAD)"
+          TS="$(date -u +%Y%m%d%H%M%S)"
+          echo "VERSION=${MA}.${MI}.$((PA + 1))-beta.${TS}+${SHA}" >> "$GITHUB_ENV"
+
       - name: prepare artifacts
         run: |
           set -euo pipefail
-          VERSION="${GITHUB_REF_NAME#beta-v}"
           PKG_DIR="/srv/breadway-dl/beta/bread-theme/${VERSION}"
           mkdir -p "${PKG_DIR}"
           cp "src/target/release/bread-theme" "${PKG_DIR}/bread-theme-x86_64"
@@ -39,7 +66,6 @@ jobs:
           MINISIGN_SEC_KEY: ${{ secrets.BAKERY_MINISIGN_SEC_KEY_PATH }}
         run: |
           set -euo pipefail
-          VERSION="${GITHUB_REF_NAME#beta-v}"
           PKG_DIR="/srv/breadway-dl/beta/bread-theme/${VERSION}"
           if [ -n "${MINISIGN_SEC_KEY:-}" ]; then
             minisign -W -S -s "${MINISIGN_SEC_KEY}" -m "${PKG_DIR}/bread-theme-x86_64" \