Merge branch 'ci-forgejo-build'

.forgejo/workflows/build.yml

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+name: Build and Test
+on: [push]
+jobs:
+  build-and-test:
+    runs-on: shell
+    steps:
+      - name: Checkout
+        run: |
+          git clone --branch ${{ github.ref_name }} ${{ github.server_url }}/${{ github.repository }}.git .
+      - name: Test
+        run: docker run --rm -w /src -v $PWD:/src golang:1.26 go test ./...
+      - name: Build
+        run: docker run --rm -w /src -v $PWD:/src -e CGO_ENABLED=0 golang:1.26 go build -buildvcs=false -ldflags "-s -w" -o hsa ./cmd/hsa
+      - name: Upload binary
+        uses: actions/upload-artifact@v3
+        with:
+          name: hsa
+          path: hsa
+      - name: Stage release
+        if: startsWith(github.ref, 'refs/tags/')
+        run: |
+          echo "${{ secrets.FORGEJO_SSH }}" > /tmp/deploy_key
+          chmod 600 /tmp/deploy_key
+          TAG=${{ github.ref_name }}
+          REL=hsa-app/releases/hsa-app-V$TAG
+          TARGET=${{ vars.HSA_APP_USER }}@${{ vars.HSA_APP_HOST }}
+          ssh -i /tmp/deploy_key -o StrictHostKeyChecking=no $TARGET "mkdir -p $REL"
+          scp -i /tmp/deploy_key -o StrictHostKeyChecking=no hsa $TARGET:$REL/hsa
+          ssh -i /tmp/deploy_key -o StrictHostKeyChecking=no $TARGET "chmod +x $REL/hsa"
+          rm /tmp/deploy_key

.forgejo/workflows/deploy.yml

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+name: Deploy
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Release version to activate, e.g. 0.0.0a1 (must already be staged in ~/hsa-app/releases/hsa-app-V<tag>/hsa)'
+        required: true
+jobs:
+  deploy:
+    runs-on: shell
+    steps:
+      - name: Activate release
+        run: |
+          echo "${{ secrets.FORGEJO_SSH }}" > /tmp/deploy_key
+          chmod 600 /tmp/deploy_key
+          TAG=${{ github.event.inputs.tag }}
+          TARGET=${{ vars.HSA_APP_USER }}@${{ vars.HSA_APP_HOST }}
+          ssh -i /tmp/deploy_key -o StrictHostKeyChecking=no $TARGET \
+            "cd hsa-app \
+             && test -f releases/hsa-app-V$TAG/hsa \
+             && chmod +x releases/hsa-app-V$TAG/hsa \
+             && ln -sfn releases/hsa-app-V$TAG/hsa hsa \
+             && systemctl --user restart hsa_app"
+          rm /tmp/deploy_key

deploy/INSTALL.md

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+# Deploying hsa-app
+
+The app runs as a **user systemd service** (no sudo). Deployment is two steps:
+
+1. **Stage (automatic on tag)** — pushing a git tag builds + tests, then CI
+   copies the binary into `~/hsa-app/releases/hsa-app-V<tag>/hsa`. Nothing goes
+   live yet.
+2. **Activate (manual button)** — run the **Deploy** workflow from the Forgejo
+   Actions tab ("Run workflow"), entering the tag to activate. It points the
+   `~/hsa-app/hsa` symlink at that release and restarts the service.
+
+The symlink decouples "what's on disk" from "what's running," so activation and
+rollback are just a symlink repoint + restart.
+
+## Layout on the host
+
+Mutable state (DB, env, config) lives at the top of `~/hsa-app/` and survives
+every deploy. Only the binaries live under `releases/`.
+
+```
+~/hsa-app/
+  hsa_app.sh                     # launcher: sources env file, exec's the binary
+  hsa_app.env                    # environment (KEY=VALUE)
+  config.json
+  hsa.db, hsa.db-shm, hsa.db-wal # SQLite state
+  releases/
+    hsa-app-V0.0.0a0/hsa
+    hsa-app-V0.0.1/hsa
+  hsa -> releases/hsa-app-V0.0.1/hsa   # current symlink, swapped on deploy
+```
+
+## The current symlink
+
+Create/repoint it **from inside `~/hsa-app`** so the relative target resolves
+against the link's own directory (running `ln -s` from `~` produces a broken
+link that points at `~/hsa-app/hsa-app/...`):
+
+```bash
+cd ~/hsa-app
+chmod +x releases/hsa-app-V<tag>/hsa
+ln -sfn releases/hsa-app-V<tag>/hsa hsa   # -f replace, -n don't follow existing link
+ls -l hsa                                  # target must resolve (not broken)
+```
+
+This same `ln -sfn` + `chmod +x` is what the CI deploy step runs on each tag.
+
+## Install the service (once)
+
+Save [hsa_app.service](hsa_app.service) to `~/.config/systemd/user/hsa_app.service`,
+then:
+
+```bash
+loginctl enable-linger "$USER"     # run the service without an active login session
+systemctl --user daemon-reload
+systemctl --user enable --now hsa_app
+systemctl --user status hsa_app
+journalctl --user -u hsa_app -f    # follow logs
+```
+
+### Why these choices
+
+- **User service** (`systemctl --user`) — no sudo, matches the home-dir deploy.
+  `enable-linger` lets it start at boot / stay up without an interactive login.
+- **`Type=exec`** — `hsa_app.sh` ends in `exec "$BIN"`, so the binary becomes the
+  unit's main process; signals and exit codes propagate correctly.
+- **`WorkingDirectory=%h/hsa-app`** — relative paths in the env file resolve here.
+  The launcher's comment recommends absolute paths for `DB_PATH` / `STORAGE_DIR` /
+  `BACKUP_DIR` / `CONFIG_PATH`; either works.
+- **ExecStart passes the env file as `$1`** — matches `hsa_app.sh`'s first-arg
+  precedence, so no `/etc/hsa-app/...` file is needed. `%h` expands to the home dir.
+- The launcher defaults its binary to `./hsa` next to itself (`~/hsa-app/hsa`, the
+  symlink), so a restart after a symlink swap runs the new release automatically.
+
+## Deploy a tagged release
+
+Pushing a tag stages the binary automatically. To activate it, open the repo's
+**Actions → Deploy** workflow, click **Run workflow**, and enter the tag (e.g.
+`0.0.0a1`). To activate from the host instead:
+
+```bash
+cd ~/hsa-app
+chmod +x releases/hsa-app-V<tag>/hsa
+ln -sfn releases/hsa-app-V<tag>/hsa hsa
+systemctl --user restart hsa_app
+```
+
+## Roll back
+
+Every release stays under `releases/`, so rollback is a symlink repoint:
+
+```bash
+cd ~/hsa-app
+ln -sfn releases/hsa-app-V<old-tag>/hsa hsa
+systemctl --user restart hsa_app
+```

deploy/hsa_app.service

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+[Unit]
+Description=HSA app
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=exec
+WorkingDirectory=%h/hsa-app
+ExecStart=%h/hsa-app/hsa_app.sh %h/hsa-app/hsa_app.env
+Restart=on-failure
+RestartSec=2
+
+[Install]
+WantedBy=default.target