POPS on real PSP hardware refuses to boot uncompressed (level-0) PSARs
(noted in pop-fe: 'Uncompressed EBOOTs don't work'), which caused 'the game
cannot be started'. Compress each 0x9300 disc block with raw DEFLATE and
switch the index table to the pop-fe layout (offset u32, length u16, flags
u8, SHA-1[16]); patch p1/p2 after the compressed size is known.
- _write_disc_block: deflate each block; store raw bytes when a block does
not shrink.
- _write_psar: reserve + patch the index table and p1/p2.
- convert/convert_to_folder/CLI: complevel parameter (default 1).
- Reuse the base PBP's ICON0 and drop generated PIC1 to match popstation.
- Self-test: add a DEFLATE round-trip with index/SHA-1 checks.
Fix the EBOOT.PBP 'data is corrupted' boot failure on CFW by making the
converter match popstation byte-for-byte where it counts:
- build_toc: A0 entry byte 8 is the raw Red Book disc-type bitfield 0x20
(CD-ROM XA), not BCD(0x20)=0x32; A-point entries use control 0x41.
- extract_data_psp: copy only prx_size (u32 at DATA.PSP+0x2C), not the
whole zero-padded section.
- PSAR_ALIGNMENT: 0x50000 (matches popstation and the base PBP).
- SFO: patch the base PBP's PARAM.SFO in place (title + DISC_ID) instead
of rebuilding, preserving integer field types (0x0404) and values.
- Cue pregap: INDEX 00 pregap is already inside the bin file, so do not
re-emit zero sectors; only a PREGAP command adds external pregap.
Track starts/lead-out now match PSXPackager's merged-cue output.
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