fix: harden node upgrades and prepare 1.9.0-alpha

reticulum-daemon/archy_esptool.py

@@ -0,0 +1,20 @@
+"""Packaged Espressif CLI: no system Python or first-use package install required."""
+import sys
+import esptool
+from esptool.loader import StubFlasher
+
+
+def self_test():
+    # Debian's stripped package omitted this blob; validate the actual bundled
+    # resources before accepting a flash job, without opening a serial port.
+    stub = StubFlasher('ESP32-S3')
+    if not stub.text or not stub.text_start or not stub.entry:
+        raise RuntimeError('ESP32-S3 flashing stub is incomplete')
+    print(f'archy-esptool {esptool.__version__}: ESP32-S3 stub ready')
+
+
+if __name__ == '__main__':
+    if sys.argv[1:] == ['--archy-self-test']:
+        self_test()
+    else:
+        esptool._main()