Default KGet's download folder to Downloads and add release workflow

install.sh now sets KGet's remembered "New Download" folder
(kgetrc Internal/LastDirectory) to the XDG downloads directory if it
isn't already configured, since KGet's own out-of-the-box default was
Documents. Falls back correctly even when xdg-user-dir has no
user-dirs.dirs config to read (it silently returns bare $HOME
otherwise).

Also add a GitHub Actions workflow that packages extension/ into a zip
and publishes a GitHub Release with generated notes whenever a
v*.*.* tag is pushed.

.github/workflows/release.yml

@@ -0,0 +1,27 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Package extension
+        run: |
+          cd extension
+          zip -r "../kget-capture-${GITHUB_REF_NAME}.zip" .
+
+      - name: Create release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: kget-capture-${{ github.ref_name }}.zip
+          generate_release_notes: true

README.md

@@ -51,6 +51,19 @@ This removes the native messaging host registrations and the installed host
 script. You'll still need to remove the unpacked extension yourself via
 `chrome://extensions` — that step can't be scripted.
 
+## Releases
+
+Pushing a tag matching `v*.*.*` (e.g. `v1.0.0`) triggers a GitHub Actions
+workflow ([.github/workflows/release.yml](.github/workflows/release.yml))
+that zips `extension/` and publishes it as a GitHub Release with
+auto-generated release notes. Bump `"version"` in `extension/manifest.json`
+before tagging so the packaged extension's version matches.
+
+```bash
+git tag v1.0.0
+git push origin v1.0.0
+```
+
 ## Known limitations
 
 - **`blob:`/`data:` URLs can't be captured.** There's no real network URL to

install.sh

@@ -51,6 +51,45 @@ if [ "$registered_any" = false ]; then
   done
 fi
 
+echo "Checking KGet's default download folder..."
+python3 - <<'PYEOF'
+import configparser
+import os
+import subprocess
+
+kgetrc = os.path.expanduser("~/.config/kgetrc")
+key = "LastDirectory[$e]"
+
+home = os.path.expanduser("~")
+try:
+    result = subprocess.run(["xdg-user-dir", "DOWNLOAD"], capture_output=True, text=True, timeout=5)
+    downloads = result.stdout.strip()
+except (FileNotFoundError, subprocess.TimeoutExpired):
+    downloads = ""
+# xdg-user-dir falls back to bare $HOME (not $HOME/Downloads) when there's
+# no ~/.config/user-dirs.dirs at all -- treat that the same as "not found".
+if not downloads or downloads.rstrip("/") == home.rstrip("/"):
+    downloads = os.path.join(home, "Downloads")
+
+cp = configparser.ConfigParser(interpolation=None)
+cp.optionxform = str
+if os.path.exists(kgetrc):
+    cp.read(kgetrc)
+
+if not cp.has_section("Internal"):
+    cp.add_section("Internal")
+
+if key in cp["Internal"]:
+    print(f"KGet's default download folder is already set ({cp['Internal'][key]}), leaving it as-is")
+else:
+    cp["Internal"][key] = downloads + "/"
+    os.makedirs(os.path.dirname(kgetrc), exist_ok=True)
+    with open(kgetrc, "w") as f:
+        cp.write(f)
+    print(f"Set KGet's default download folder to {downloads}")
+    print("(If KGet is currently running, restart it for this to take effect.)")
+PYEOF
+
 EXT_ID=$(cat "$SCRIPT_DIR/keys/extension-id.txt")
 
 cat <<EOF