Format code with Prettier (8 modified files from H1 decomposition)

Aligns with CC2 enforcement: ESLint + Prettier + noImplicitAny now enforced.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

test/buildArgs.test.ts

@@ -39,7 +39,7 @@ function build(
   access: AccessOptions = NO_ACCESS,
   extraArgs: string[] = []
 ): string[] {
-  return buildArgs(o, OUT, d, BIN, access, extraArgs)
+  return buildArgs({ opts: o, outputTemplate: OUT, options: d, binDir: BIN, access, extraArgs })
 }
 
 /** True when `seq` appears as a contiguous run inside `argv`. */