Move bakery's own release workflow from .github to .forgejo

.github/workflows/release.yml built and published the bakery binary
itself, but it lived under .github/ and targeted runs-on:
[self-hosted, hestia] — a runner label only registered against
Forgejo, never against GitHub Actions. It has therefore never run;
get.sh has been pointing at dl.breadway.dev/bakery/... this whole time
with nothing actually publishing there.

Recreated the same logic as .forgejo/workflows/release-bakery.yml,
matching the sibling release-bread-theme.yml in this repo (manual
clone instead of actions/checkout, GH_RELEASE_TOKEN instead of the
GitHub-provided GITHUB_TOKEN, same dormant-until-provisioned minisign
signing step). Removed the dead .github copy.

.forgejo/workflows/release-bakery.yml

@@ -0,0 +1,74 @@
+name: release bakery
+
+on:
+  push:
+    tags: ['v*']
+
+jobs:
+  build:
+    runs-on: [self-hosted, hestia]
+    steps:
+      - name: checkout
+        run: |
+          set -euo pipefail
+          rm -rf src && mkdir src
+          git clone --branch "${GITHUB_REF_NAME}" --depth 1 \
+            "https://git.breadway.dev/${GITHUB_REPOSITORY}.git" src
+
+      - name: build
+        run: cd src && cargo build --release --locked -p bakery
+
+      - name: test
+        run: cd src && cargo test --release --locked -p bakery
+
+      - name: prepare artifacts
+        run: |
+          set -euo pipefail
+          VERSION="${GITHUB_REF_NAME#v}"
+          PKG_DIR="/srv/breadway-dl/bakery/${VERSION}"
+          mkdir -p "${PKG_DIR}"
+          cp "src/target/release/bakery" "${PKG_DIR}/bakery-x86_64"
+          strip "${PKG_DIR}/bakery-x86_64"
+          sha256sum "${PKG_DIR}/bakery-x86_64" | awk '{print $1}' \
+            > "${PKG_DIR}/bakery-x86_64.sha256"
+          cp src/bakery.toml "${PKG_DIR}/bakery.toml"
+          ln -sfn "${VERSION}" "/srv/breadway-dl/bakery/latest"
+
+      # Signs the bakery binary itself with the shared bakery ecosystem signing
+      # key (same key that signs index.json and bread-theme — see
+      # release-bread-theme.yml). BAKERY_MINISIGN_SEC_KEY_PATH is a *path on
+      # this runner's disk* (hestia has persistent storage), not the key
+      # contents. Dormant (binary ships unsigned, as today) until that secret
+      # is provisioned.
+      - name: sign release binary
+        env:
+          MINISIGN_SEC_KEY: ${{ secrets.BAKERY_MINISIGN_SEC_KEY_PATH }}
+        run: |
+          set -euo pipefail
+          VERSION="${GITHUB_REF_NAME#v}"
+          PKG_DIR="/srv/breadway-dl/bakery/${VERSION}"
+          if [ -n "${MINISIGN_SEC_KEY:-}" ]; then
+            minisign -W -S -s "${MINISIGN_SEC_KEY}" -m "${PKG_DIR}/bakery-x86_64" \
+              -x "${PKG_DIR}/bakery-x86_64.minisig" </dev/null
+            echo "signed bakery-x86_64"
+          else
+            echo "::warning::BAKERY_MINISIGN_SEC_KEY_PATH not set — shipping bakery-x86_64 UNSIGNED"
+          fi
+
+      - name: regenerate index.json
+        env:
+          MINISIGN_SEC_KEY: ${{ secrets.BAKERY_MINISIGN_SEC_KEY_PATH }}
+        run: cd src && bash scripts/gen-index.sh
+
+      - name: upload to GitHub Release
+        env:
+          GH_TOKEN: ${{ secrets.GH_RELEASE_TOKEN }}
+        run: |
+          set -euo pipefail
+          VERSION="${GITHUB_REF_NAME#v}"
+          PKG_DIR="/srv/breadway-dl/bakery/${VERSION}"
+          gh release create "${GITHUB_REF_NAME}" --repo Breadway/bread-ecosystem \
+            --title "bakery ${GITHUB_REF_NAME}" --generate-notes 2>/dev/null || true
+          ASSETS="${PKG_DIR}/bakery-x86_64 ${PKG_DIR}/bakery-x86_64.sha256"
+          [ -f "${PKG_DIR}/bakery-x86_64.minisig" ] && ASSETS="${ASSETS} ${PKG_DIR}/bakery-x86_64.minisig"
+          gh release upload "${GITHUB_REF_NAME}" --repo Breadway/bread-ecosystem ${ASSETS} --clobber