[Sumaiter]

Add matching C for four previously unmatched SCES_532.85 main-image functions:

• func_0048F4C0 (56 bytes): read the first 16-bit field of a 32-byte record.
• func_0048F4F8 (56 bytes): read the 16-bit field at offset 0x0A of the same record table.
• func_0048F5C8 (56 bytes): read the first 16-bit field of the 8-byte record table.
• func_00498468 (52 bytes): return a value for indices 0..3, zero for index 4, and -1 for every other unsigned index.

The first three retain the low-16-bit handle mask, null-table check and inclusive upper bounds. Their partial table layout is shared in include/pal/record_tables.h; the existing declaration of D_002215D8 as void * is preserved.

Validation:

• Compiled all four final source files through the existing tools/cc.sh pipeline with its default SN compiler settings and no new flags.
• All 220 bytes match using the repository's relocation masks. Independently resolved every HI16/LO16 pair: eight relocations total, pointing to the original global addresses D_002215D8 and D_002F33B8.
• Verified the final source hashes against the tested files.
• Added only four PAL match rows and four US other rows; every existing map row is unchanged.
• Regenerated progress using tools/progress.py: PAL increases by four functions and 220 bytes (5,138 -> 5,142 functions; 396,888 -> 397,108 bytes). The US report is unchanged.
• Both US and PAL tools/progress.py --check passed, as did git diff --check.

This branch is independent of PRs #57 and #58. Validation is limited to these PAL functions; a full rebuild, global audits and US-disc comparisons were not run. No retail binaries, assets or disassembly are included.