Update documentation and scripts for revision tracking and cloud-init enhancements</message>

<message>Introduce a revision tracking system across project files, allowing for easier identification of changes. Update the README files to include instructions for bumping revisions and auto-bumping on commits. Additionally, enhance cloud-init scripts with revision comments for better version control. Modify the dashboard API to improve build status management, including a forced clear option for stuck statuses, enhancing user experience and operational reliability.

emmc-provisioning/dashboard/app.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+# Revision: 2
 """
 Flask dashboard for CM4 eMMC provisioning.
 Public home: deploy only (status, logs, how to connect). No login.
@@ -1632,10 +1633,12 @@ def api_build_cloudinit_cancel():
 @app.route("/api/build-cloudinit-status-clear", methods=["POST"])
 @require_admin
 def api_build_cloudinit_status_clear():
-    """Clear build status to idle (so message is cleared after cancel/done/error)."""
+    """Clear build status to idle (so message is cleared after cancel/done/error).
+    Use ?force=1 to clear even when status is stuck (e.g. build died during finalizing)."""
     st = _build_status_read()
+    force = request.args.get("force") in ("1", "true", "yes")
     busy = st.get("phase") in ("downloading", "decompressing", "injecting", "finalizing", "resolving")
-    if busy:
+    if busy and not force:
         return jsonify({"ok": False, "error": "Cannot clear while build is in progress"}), 409
     _build_status_write("idle", "", None, None)
     return jsonify({"ok": True})