Publish r13 audited Builder installer

[vibeforge1111]

Summary

• Publish hosted installer r13 scripts from spark-cli [spark-compete] Fix memory chip feedback route #56.
• Update checksums, release manifest, command metadata, attestations, and docs to Spark CLI source ref 264baaaf0cbb3e1790b20c425b391d2919505a21.

Verification

• bash -n install.sh
• PowerShell parser check for install.ps1
• node scripts/check-security-release-surface.mjs
• node scripts/check-docs-readiness.mjs
• node scripts/check-command-docs.mjs
• SPARK_CLI_PATH=C:\Users\USER\Desktop\spark-cli node scripts\smoke-command-docs-cli.mjs
• checksum coherence script
• git diff --check