PicoKey App 2.4

New version 2.4

1. Major new functional modules

• Added a full HSM section (management, crypto, initialization).
• Expanded FIDO management with passkeys, slots, accounts, plus FIDO2 and bindings support.
• Added a new OpenPGP module, including a PIV panel and public key export in ASCII-armored (.asc) format.
• Integrated pypicoopenpgp and moved OpenPGP-related functionality into that package.

2. Firmware/board and ESP32 support

• Added support for ESP BOOT mode, ESP Secure Boot, and ESP flashing.
• Added scripts/parsers for ESP32 board scraping and manifest generation updates.
• Added local firmware loading (no registration required).
• Added serial-number caching for locked ESP boards.

3. UI/UX and app-flow improvements

• Reorganized sections (including key management), made session section foldable, and improved sidebar behavior.
• Reworked modal/message dialog system (replacing QMessageBox patterns), including ESC close/cancel support.
• Improved lock/unlock flow, PIN request flow, async/thread handling, and device connection signaling.
• Status bar behavior changed to a floating model.

4. Agent and cross-platform reliability

• Added capability to install the agent.
• Fixed agent behavior across macOS, Linux, and Windows.
• Fixed Windows resource path handling and distribution restart behavior.

5. Build/packaging/dependencies

• Multiple packaging/build refinements (UPX/strip toggles, external Qt usage, symlink handling in zip, etc.).
• Requirements updates and SSL context fix using certifi.

6. Other notable additions

• Added an Audit panel (with temporary disable/re-enable work during development).
• Expanded About area (including Credits) and updated third-party license assets.