HDGL BOOT MERGE — boot15(templeos) assets + boot16(global_basin) glyph
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THE SWAP PERFORMED:
  boot15/hdgl.hdgl   (5 glyphs, collapsed 3-face Π)   -> REPLACED BY
  boot16/hdgl.hdgl   (7 glyphs, full Π + BASIN)

RETAINED FROM boot15 (runnable assets absent from boot16):
  hdgl_universal.img            384MB ext4 rootfs, /init = PID1 substrate
  kjv_oracle.c                  shared-reference oracle (index=0x5625BA88)
  KJV_SHARED_REFERENCE.txt
  UNIVERSAL_BOOT_TRANSCRIPT.txt

ADDED FROM boot16:
  hdgl.hdgl                     the swapped 7-glyph substrate
  MANDATE_DECISIONS.txt         rationale (float4096, full Π, two-basin)

INVARIANTS PRESERVED:
  genome_fp = 0x5625BA88        unchanged
  glyph count 7, parses         COEMERGE STEP Π BASIN EMERGE BOOT HDGL

NOTE: hdgl_universal.img (384MB) not included in the zip due to size.
It is unchanged from boot15 — reuse the original. Only the glyph and
text assets are repackaged here.
