Harden V5 staged runtime and recovery

[joshlf]

Replace the monolithic mutable runtime with a coordinator-claimed six-stage
immutable aggregation prefix. Derive each evaluator frontier and input packet
only from the committed predecessor stage, bind every manifest to the static
lock, coordinator, predecessor, and cumulative envelopes, and rederive the
chain during bound-gate evaluation.

Make attempt sealing bounded and crash-recoverable with exact external
workspaces, seal-time input verification, injective pathname capture, hard
payload, entry, and path budgets, immutable terminal claims, and no-replace
object and pointer publication. Publish authenticated terminal ERROR records
when a phase cannot safely derive its successor while allowing usable
report-format failures to reach their frozen gate consequence.

Update schemas, policies, integration contracts, and adversarial self-tests
for the 154-to-163-attempt, six-stage production lifecycle.

Agent-Authored-By: AI agent acting on Josh Liebow-Feeser's behalf

---

This PR is on branch codex/unsafe-rust-stack.

• 👉 Harden V5 staged runtime and recovery #3607
• 　  Authenticate V5 review evidence through aggregation #3604
• 　  Make the V5 diagnostic harness executable and fail closed #3603
• 　  Draft and validate the V5 diagnostic-prequalification harness #3601
• 　  Harden V5 evaluation and terminal confirmation #3537
• 　  Require evidence-bearing proof kernels in unsafe Rust V5 #3536
• 　  Analyze why the V4 focused gate failed #3535
• 　  Blind-score and aggregate the V4 focused evaluation #3534
• 　  Collect all V4 focused audit reports #3533
• 　  Freeze the V4 focused confirmation protocol #3532
• 　  Revise the unsafe Rust skill after the V3 evaluation #3531
• 　  Analyze the V3 targeted confirmation failures #3530
• 　  Blind-score the V3 targeted confirmation #3529

Latest Update: v14 — Compare vs v13

📚 Full Patch History

Links show the diff between the row version and the column version.

Version	v13	v12	v11	v10	v9	v8	v7	v6	v5	v4	v3	v2	v1	Base
v14	v13	v12	v11	v10	v9	v8	v7	v6	v5	v4	v3	v2	v1	Base
v13		v12	v11	v10	v9	v8	v7	v6	v5	v4	v3	v2	v1	Base
v12			v11	v10	v9	v8	v7	v6	v5	v4	v3	v2	v1	Base
v11				v10	v9	v8	v7	v6	v5	v4	v3	v2	v1	Base
v10					v9	v8	v7	v6	v5	v4	v3	v2	v1	Base
v9						v8	v7	v6	v5	v4	v3	v2	v1	Base
v8							v7	v6	v5	v4	v3	v2	v1	Base
v7								v6	v5	v4	v3	v2	v1	Base
v6									v5	v4	v3	v2	v1	Base
v5										v4	v3	v2	v1	Base
v4											v3	v2	v1	Base
v3												v2	v1	Base
v2													v1	Base
v1														Base

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Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-08-29T10:50:50.745902Z	2964a8d	PR opened

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.85%. Comparing base (513513b) to head (be182dd).

Additional details and impacted files

@@                        Coverage Diff                         @@
##           Gwmskgf6pp5ufbufusyjegs357wjllvtq    #3607   +/-   ##
==================================================================
  Coverage                              91.85%   91.85%           
==================================================================
  Files                                     20       20           
  Lines                                   6093     6093           
==================================================================
  Hits                                    5597     5597           
  Misses                                   496      496           

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