Add Telegram Desktop tdata artifacts

[abrignoni]

Summary

• add offline Telegram Desktop tdata decryption with TDF/TDEF integrity validation
• recover account identity, recent/top peers, retained local-file paths, and focused application log events
• decrypt and embed only live, recognized cache media after binlog, TDEF, and XXH32 validation
• label Telegram cache tags while suppressing stale and opaque cache noise
• never expose local keys, MTProto authorization keys, or peer access hashes

Validation

• python3 -m unittest discover -s admin/test/scripts -p "test_*.py" (28 passed)
• pylint: 10.00/10 for all new Python modules
• full DLEAPP filesystem run against the local Telegram Desktop profile
  • Accounts: 1
  • Recent Peers: 2
  • Local Files: 2
  • Application Log: 12
  • Recovered Cache: 239

Format verification

Implementation was checked against Telegram Desktop v7.0.6 and the exact lib_storage revision pinned by that release. The parser performs offline-only recovery and makes no Telegram network connection.