Update pve RustDesk GA sync scripts

blair-sync-rustdesk-via-ga.sh

@@ -14,6 +14,7 @@ fi
 
 exec python3 - <<'PY'
 import base64
+import binascii
 import json
 import os
 import re
@@ -173,8 +174,30 @@ def guest_exec_text(vmid: int, command: list[str], timeout: int = 90) -> tuple[s
     return None, 'guest exec timeout'
 
 
+def decode_agent_file_content(raw) -> str | None:
+    if raw is None:
+        return None
+    if isinstance(raw, bytes):
+        return raw.decode('utf-8-sig', errors='replace')
+    text = str(raw).strip()
+    if not text:
+        return None
+    # pvesh may return decoded file body (JSON/TOML/plain text).
+    if text[0] in '{[#' or 'rustdesk_id' in text or re.search(r'(?m)^\s*id\s*=', text):
+        return text.lstrip('\ufeff')
+    ascii_blob = ''.join(text.split())
+    if not ascii_blob:
+        return None
+    try:
+        decoded = base64.b64decode(ascii_blob, validate=True)
+        return decoded.decode('utf-8-sig', errors='replace')
+    except (ValueError, binascii.Error):
+        return text.lstrip('\ufeff')
+
+
 def guest_file_read(vmid: int, guest_path: str) -> tuple[str | None, str | None]:
     for path in {guest_path, guest_path.replace('\\', '/')}:
+        try:
             proc = subprocess.run(
                 [
                     'pvesh', 'get', f'/nodes/{NODE}/qemu/{vmid}/agent/file-read',
@@ -184,15 +207,18 @@ def guest_file_read(vmid: int, guest_path: str) -> tuple[str | None, str | None]
             )
             if proc.returncode != 0:
                 continue
-        try:
             payload = json.loads(proc.stdout)
-        except json.JSONDecodeError:
-            continue
             data = payload.get('data', payload)
-        content_b64 = data.get('content') if isinstance(data, dict) else None
-        if not content_b64:
+            if not isinstance(data, dict):
+                continue
+            raw = data.get('content')
+            if raw is None:
+                continue
+            text = decode_agent_file_content(raw)
+            if text:
+                return text, None
+        except (json.JSONDecodeError, ValueError, UnicodeError):
             continue
-        return base64.b64decode(content_b64).decode('utf-8', errors='replace'), None
     return None, f'file-read failed for {guest_path}'
 
 
@@ -230,6 +256,7 @@ def guest_exec_powershell(vmid: int) -> tuple[str | None, str | None]:
 def read_rustdesk_id(vmid: int) -> tuple[str | None, str | None]:
     errors: list[str] = []
     for path in GUEST_READ_PATHS:
+        try:
             text, err = guest_file_read(vmid, path)
             if not text:
                 if VERBOSE:
@@ -241,6 +268,9 @@ def read_rustdesk_id(vmid: int) -> tuple[str | None, str | None]:
                     log(f'VM {vmid}: ID {rid} from file-read {path}')
                 return rid, None
             errors.append(f'{path}: no id in file')
+        except Exception as exc:  # noqa: BLE001 — keep sync loop alive
+            errors.append(f'{path}: {exc}')
+            continue
 
     rid, err = guest_exec_powershell(vmid)
     if rid: