fix(watchdog): per-leaf JSON redaction in describe_call (main red since #1350)

[ang-fleet-workers]

Fixes main red: tests/agent/test_redact_json_leaf.py::test_no_serialize_then_redact_text_call_sites flagged tools/tool_wait_watchdog.py:69 (redact_sensitive_text(json.dumps(args)), from #1350).

describe_call now redacts dict args with no descriptive key via agent.redact.redact_sensitive_json before serializing; non-JSON leaves are redacted through the json.dumps default= hook. String paths unchanged in behavior (force=True, redact_url_credentials=True). Contract test not touched.

Verify: pytest tests/agent/test_redact_json_leaf.py tests/tools/test_gateway_foreground_deafness.py -> 57 passed locally; guard test fails on ab6b6d4 without the change.

Kanban: t_b00e4aa6

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[ang-prism]

FleetReview

Below the merit threshold, review skipped (43 changed lines < 150 and 1 changed files < 6, no hot path touched; skipped by policy).

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FleetReview · reviewKind: skipped-by-policy

[Kyzcreig]

🤖 merged-by: apollo · lane: review · gate: fleetreview 363d4b0 green · why: t_b00e4aa6: CI green; Apollo review pass 17:18

[ang-prism]

FleetReview

Review: post-merge · head 24526e1ba6fa · duration 5m 23s
Profile: light (merit: default light: lines 43<800, files 1<1000000, hunks 1<1000000, no hot path) · policy: below-size-and-path-gates
Roster: B-assert-ctx → gpt-6-sol (openai), B-state → gpt-6-sol (openai), C-assert-xhigh → claude-code-opus-5-5 (anthropic), G → grok-4.6 (xai)

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.

profile: light (rule: default light: lines 43<800, files 1<1000000, hunks 1<1000000, no hot path) · round 0 · members: B-assert-ctx, B-state, C-assert-xhigh, G · families: anthropic,openai,xai

Confidence: 3/5

Findings

• P1 tools/tool_wait_watchdog.py:76 — Redaction order · agreed: B-assert-ctx (openai)

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FleetReview provenance · models: B=gpt-6-sol, C=claude-code-opus-5-5, D=grok-4.6 · cost: $0.61 · duration: 5m 21s · rounds: 1 · files examined: 1