feat(about): show build commit next to the app version (#1208)

* feat(about): show build commit next to the app version

Settings > About now renders "<version> (<short-sha>)" with the full
SHA in the tooltip, so bug reports from test and nightly builds
identify the exact commit. The commit is injected at CI build time into
apps/web/src/environments/build-commit.ts (same placeholder pattern as
the TMDB key inject); PR builds use the real head SHA instead of the
ephemeral merge commit. Local/dev builds keep the plain version.

The semver version itself deliberately stays untouched: a "-sha"
suffix would flip electron-updater into prerelease mode and leak into
installer/artifact version fields.

Requested by WolfganP in #1202.

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

* style(settings): keep relative import after monorepo alias imports

Addresses Greptile feedback on #1208.

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

* feat(docker): inject build commit into published PWA images

The Docker/PWA build path bypassed the Electron workflow's inject step,
so published images showed the plain version in About. Pass the commit
as a build arg and run the inject script before the PWA build; the
script no-ops when BUILD_COMMIT is empty, leaving local docker builds
unchanged.

Addresses Codex feedback on #1208.

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

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

apps/web/src/app/settings/settings-about-section.component.html

@@ -19,7 +19,17 @@
             <p>{{ 'SETTINGS.VERSION_DESCRIPTION' | translate }}</p>
         </div>
         <div class="setting-item__control version-block">
-            <span>{{ version() }}</span>
+            <span data-test-id="app-version">
+                {{ version() }}
+                @if (buildCommitShort(); as commit) {
+                    <span
+                        class="build-commit"
+                        data-test-id="app-build-commit"
+                        [title]="buildCommit()"
+                        >({{ commit }})</span
+                    >
+                }
+            </span>
             <small>{{ updateMessage() }}</small>
         </div>
     </div>