BFpilot v0.3.1 Test Build 4

BFpilot v0.3.1 test build, dont use this unless you want to help me test.

High-level changes since v0.3:

• Adds standalone archive extraction support inside bfpilot.elf; normal archive extraction no longer requires injecting a separate worker ELF.
• Adds archive handling for ZIP, RAR, 7z, and common split archive flows, including password prompting for encrypted archives.
• Keeps the launcher installer as a separate payload for firmware compatibility.
• Includes UI polish around storage display, plugged drive handling, and persistent custom shortcuts.
• Keeps diagnostics and transfer instrumentation available for troubleshooting.

Artifacts:

• bfpilot.elf - main compatible BFpilot file manager payload.
• bfpilot-launcher-installer.elf - separate launcher tile installer payload.
• bfpilot-archive-worker.elf - standalone archive worker payload kept for diagnostics/manual testing.

Validation:

• PS5_PAYLOAD_SDK=/home/blurf/PS5/ps5-payload-sdk make all passed.
• PS5_PAYLOAD_SDK=/home/blurf/PS5/ps5-payload-sdk make inspect-imports passed.

Checksums:

• bfpilot.elf: 9c59141cdf0c9b0c8c5c912c207ac055986833f0232d2e6d0ac348bfdebd60f3
• bfpilot-launcher-installer.elf: fa26790beabdaced2c90858dab7183829c3c2b3b6a43b7638fab524fa7f1d056
• bfpilot-archive-worker.elf: 507c06abc41306fc366d1dc007796d67e4dd1c7804373b8100bd147324ab4e1b

Known limitations:

• ZIP AES and some uncommon multi-volume ZIP variants remain limited.
• Archive behavior should still be tested on the target PS5 with real user archives before treating this as final stable behavior.