Refine operational documentation and run records

[krishna310301]

Summary

• replace self-promotional repository framing with direct operational documentation
• present AWS runs through results, records, snapshots, scope, and operating limits
• align runbooks, checklists, security notes, and recovery output with the same terminology

Verification

• git diff --check
• all 27 tracked Markdown local links resolve
• AWS run SHA-256 ledger passes
• recovery JSON parses successfully
• recovery drill CLI loads successfully