v0.68.0

Changelog

Fixes

• 8ca7c60 fix(engine): track restart budget per resolved loop target (#603)
• ae4d0b4 fix(pipeline): add graph finalization boundary before execution (#606)

Other

• 0401d93 docs(release): v0.68.0 — SIFT batch 2 (#603/#606/#609/#612/#613)
• d00b91b merge: centralize CLI command metadata (#612)
• 48e7471 merge: conformance uses the shipped LLM client constructor (#609)
• f1bcf48 merge: generate reader-side activity schema from one authority (#613)
• 7c10038 merge: per-loop-target restart budgets (#603)
• 8510115 merge: single graph-finalization boundary before execution (#606)
• 0b31fe9 refactor(activity): generate reader schema from one authority (#613)
• 72b7ef0 refactor(cli): centralize public command metadata in one table (#612)
• dc58041 refactor(conformance): route live commands through shipped LLM client