Fix memory leaks and improve heap safety in NFC plugins

[baalpeteor2]

What's new

Inspiration: contributing to codebases I like to help make them better.

Summary

This PR fixes multiple memory leaks and improves memory safety in the Metroflip codebase to prevent crashes and out-of-memory errors on Flipper Zero devices.

Changes Made

DESFire AID variant added (Orca)

• Added new Orca AID variant 0xF013F2 (detected as bytes F0 13 F2) based on an Orca plastic card I had lying around.
• Fixed array size from 89 to 90 to accommodate new AID entry

Ventra/Ultralight File Loading Fix

• Added "NTAG/Ultralight" device type string (used by Flipper NFC library)
• Now loads any Ultralight card even without Ventra signature
• Files saved by Metroflip (at least Ventra) now load properly

Buffer Size Verification

• Verified all static buffer sizes are sufficient for their data formats
• Fixed get_navigo_service_provider() buffer from 8 to 12 bytes

Memory Leak Fixes

• read_calypso_data() - Fixed memory leak when data not found
• get_country_string() - Changed from malloc to static buffer
• Unused nfc_scanner_alloc() calls - Removed from 8 plugins
• Transit display functions - Converted to static buffers

Memory Safety Improvements

• CalypsoCardData initialization - Initialize pointers to NULL for safe cleanup

• Allocation failure handling - Added NULL checks for malloc returns

• Cleanup on failure - Added proper cleanup path for card data on early exit

• NULL checks in cleanup - Added check for ctx->card in calypso_on_exit

• Not fixed: this app should adopt a license, like the standard MIT license or something.

Verification

• Test saving/reloading a ventra pass, and it will now show (was broken before)
• Read many cards, open and close the app, read more... usually it would crash before I could reopen the app. Many crashes gone
• This came as a response to 2 issue tickets on the Metroflip repo, for Navigo and Opus crashes. Those should be resolved with this PR, but I didn't have those cards to test.

Checklist (For Reviewer)

• PR has description of feature/bug
• Description contains actions to verify feature/bugfix
• I've built this code, uploaded it to the device and verified feature/bugfix

[baalpeteor2]

compiled well in momentum, RM, and if I remember OFW last time I checked, and the compiled fap ran in all 3. If there's a problem compiling (an error w/ FelicaData* or FelicaSystem) let me know and I can upload the difference (basically changing FelicaData to FelicaSystem depending on OFW fw).