Standalone pasbuild plugin (phase: none) that builds the Blaise compiler
using the Blaise bootstrap binary rather than FPC:
pasbuild blaise-compile
Steps: RTL make+install → emit IR via bootstrap binary → qbe assemble
→ gcc link → compiler/target/blaise
Bootstrap binary resolved from BLAISE_BOOTSTRAP env var or the newest
releases/vX.Y.Z/blaise binary found in the project tree.
