v7.6.16

Codex SQLite Migration Recovery

• Codex Log Redirect Migration Fixed: managed Codex logs_2.sqlite
  redirect now leaves Codex-owned SQLite schema creation to Codex itself and
  waits for _sqlx_migrations before installing the CCB diagnostic insert
  trigger.
• Bad Intermediate Temp DBs Repaired: temporary log databases left by the
  bad intermediate policy are detected when logs exists without a successful
  Codex migration record, backed up, and recreated by Codex on the normal
  migration path.
• Diagnostic Fallbacks Preserved: diagnostics restore and symlink fallback
  behavior remain covered while the default path avoids precreating Codex's log
  schema.
• Release Surface Synchronized: VERSION, CLI version constants,
  package.json, release workflow defaults, README release notes, and npm
  packaging metadata are aligned for 7.6.16.