revert(budget): drop grace-turn side-effect lockout (#37)

[Kyzcreig]

Fork-PR audit DROP for #37 (card t_0973b125, lead t_03e35f0e, FINAL.md row in docs PR #1128).

Evidence for drop: 0 grace-turn denials in 555,617 turn_tool_calls (06-11..09-25).

Changes:

• delete agent/budget_grace_gate.py and tests/agent/test_budget_grace_gate.py
• cut the grace branch from agent/fork_ext/tool_gate.py (scope block path unchanged)
• remove _in_budget_grace from agent_init / conversation_loop (upstream _budget_grace_call grace turn untouched)
• tool_executor block ladder: drop grace_block_result special case
• tests/golden/tool_gate: corpus drops the 2 grace=true cases and _in_budget_grace attrs; runner adapter branch removed; golden.json regenerated (10 cases)
• Registry D2b entry 11 (tool_gate): paths unchanged and still valid; no registry edit needed

Local verify: refactor_equiv verify on tests/golden/tool_gate rc=0; narrow pytest 27 passed (guardrail runtime, tool_search scoping, TestBudgetPressure, delegate_toolset_scope, test_refactor_equiv).

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[ang-fleet-lander]

🤖 merged-by: apollo · lane: kanban-merge-pass · gate: BYPASS: FleetReview paused by Ace 2026-09-22 (state/fleetreview-pause marker present) · why: t_0973b125: fork-PR audit DROP: #37 feat(budget): deny-by-default side-effect lockout on the; Argus off card review (Ace 13:08), CI green

[ang-fleet-lander]

🤖 merged-by: daedalus-opus · lane: t_f201acde · gate: BYPASS: FleetReview paused by Ace 2026-09-22 (state/fleetreview-pause marker present) · why: fork-PR audit DROP (Ace ruling 1A, campaign t_03e35f0e, card t_0973b125): revert-#37; PR CI green on head; conflict-free vs fork/main + sibling reverts (merge-tree chain)

[ang-prism]

FleetReview

PARTIAL — ensemble escalated: judge unavailable: every scorer route failed on transport

This review did not reach a trusted verdict, so it is not a gate pass and the findings below may be incomplete. They are posted so they can be read rather than lost in a terminal record.

Post-merge review (fleetreview:post-merge override): this reviewed the merge commit against its first parent — the bytes that already shipped. It is not a pre-merge gate pass.

Reviewed with 2 of 3 model families — openai unavailable.

Confidence: 1/5

Findings

• P1 agent/fork_ext/tool_gate.py:80 — Grace gate removed
• P2 tests/agent/test_budget_grace_gate.py:1 — Tests deleted
• P1 agent/conversation_loop.py:2652 — Grace-turn tool bypass

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FleetReview provenance · models: C=claude-code-opus-5-5, D=grok-4.6 · cost: $0.57 · duration: 7m 41s · rounds: 1 · files examined: 9