docs: add software-vision and android-backup-restore skills with android scripts

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

scripts/android/fix-installers.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+"""Reinstall each restored app with its original installer (pm set-installer refuses root).
+
+Same APKs, `install-multiple -r -i <installer>` keeps data. The device comes from ANDROID_SERIAL, as for adb. Usage: fix-installers.py BACKUP_DIR WORK_DIR
+"""
+
+import re
+import subprocess
+import sys
+import time
+from pathlib import Path
+
+backup, work = Path(sys.argv[1]), Path(sys.argv[2])
+log_file = (work / "restore.log").open("a")
+
+
+def log(msg: str) -> None:
+    line = f"{time.strftime('%H:%M:%S')} {msg}"
+    print(line, flush=True)
+    log_file.write(line + "\n")
+    log_file.flush()
+
+
+def adb(*args: str, timeout: int = 900) -> str:
+    r = subprocess.run(["adb", *args], capture_output=True, text=True, timeout=timeout)
+    return (r.stdout + r.stderr).strip()
+
+
+def installers(text: str) -> dict:
+    # `pm list packages -i` prints "package:PKG", with -f "package:PATH=PKG".
+    return dict(re.findall(r"[:=]([\w.]+)\s+installer=(\S+)", text))
+
+
+want = installers((backup / "rooted-fresh/packages-3.txt").read_text())
+now = installers(adb("shell", "pm list packages -3 -i"))
+disabled = set(re.findall(r"package:([\w.]+)", adb("shell", "pm list packages -d")))
+log("=== installer fix-up start")
+for pkg, inst in sorted(want.items()):
+    if inst == "null" or pkg not in now or now[pkg] == inst or inst not in now | {"com.android.vending": 1}:
+        continue
+    apks = sorted(str(p) for p in (backup / "apks" / pkg).glob("*.apk"))
+    if not apks:
+        continue
+    # Reinstalling re-enables a frozen app; disable it again afterwards.
+    out = adb("install-multiple", "-r", "-d", "-i", inst, "--bypass-low-target-sdk-block", *apks)
+    if pkg in disabled:
+        adb("shell", f"su -c 'pm disable-user --user 0 {pkg}'")
+    log(f"{pkg}: installer {now[pkg]} -> {inst}: {'OK' if 'Success' in out else 'FAILED ' + out[-200:]}")
+log("=== installer fix-up done")