Compile eligible shader-pair bases on the Mac with metal-tt, package one
archive per selected iPhone GPU, and use a matching bundle before falling
back to on-device preparation. Carry the profile depth mode through packing
and include the pulling libraries required by the bundled bases.
Integrate PR #226 with four confirmed fixes: validate archive container
bounds before invoking Metal; require at least one actual successful bundle
probe; hash consumed library bytes into offline cache keys; and emit device
remainder lists for constant-only plans instead of aborting packaging.
Keep game measurements in the game note and document the general findings.
Validation on current main: 52 real Metal bundle checks, 57 archive checks,
79 prewarm checks on each pipeline path, 73 Python regressions covering
offline tools, packaging, documentation and chain checks, and compilation
of all 133 iOS source files. No new iPhone gameplay validation. The archive guard validates
container structure, not private Metal payloads.
Co-authored-by: v0lumehi <aljic.zijad@gmail.com>
