Add workflow to dispatch cinny-mobile submodule bump on push.

.gitea/workflows/trigger-mobile.yml

@@ -0,0 +1,53 @@
+name: Trigger cinny-mobile
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  dispatch:
+    runs-on: ubuntu-latest
+    if: ${{ !contains(github.event.head_commit.message || '', '[skip mobile]') }}
+    steps:
+      - name: Dispatch update-submodule on cinny-mobile
+        env:
+          # Prefer a PAT with Actions write on cinny-mobile (secret name: GITEA_TOKEN).
+          # Default GITHUB_TOKEN is usually scoped to this repo only.
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          API_BASE: ${{ github.server_url }}/api/v1
+          CINNY_SHA: ${{ github.sha }}
+        run: |
+          set -euo pipefail
+
+          TOKEN="${GITEA_TOKEN:-${GITHUB_TOKEN:-}}"
+          if [ -z "${TOKEN}" ]; then
+            echo "No GITEA_TOKEN/GITHUB_TOKEN available to dispatch cinny-mobile"
+            exit 1
+          fi
+
+          BODY=$(jq -n \
+            --arg ref "master" \
+            --arg sha "${CINNY_SHA}" \
+            '{ref: $ref, inputs: {cinny_sha: $sha}}')
+
+          echo "Dispatching litruv/cinny-mobile update-submodule.yml for ${CINNY_SHA}"
+          HTTP_CODE=$(curl -sS -o /tmp/dispatch-body.txt -w "%{http_code}" \
+            -X POST \
+            -H "Authorization: token ${TOKEN}" \
+            -H "Content-Type: application/json" \
+            -d "${BODY}" \
+            "${API_BASE}/repos/litruv/cinny-mobile/actions/workflows/update-submodule.yml/dispatches?return_run_details=true")
+
+          echo "HTTP ${HTTP_CODE}"
+          cat /tmp/dispatch-body.txt || true
+          echo
+
+          case "${HTTP_CODE}" in
+            200|201|204) echo "Dispatch accepted" ;;
+            *)
+              echo "Dispatch failed"
+              exit 1
+              ;;
+          esac