* fix(codex): use structured turn status for aborts, repair tool schemas, relay native results to middleware
- turn aborts are detected from the correlated turn/completed status instead
of byte-matching private codex-rs prose; the <turn_aborted> marker remains a
non-terminal user-interrupt hint (tags only, wording-independent) because the
app-server collapses all abort reasons into "interrupted" (#99268)
- dynamic-tool schemas are repaired before projection via the shared OpenAI
normalizer: annotation nulls stripped, type:null inferred from object/array
shape hints; unrepairable null constraints stay quarantined instead of
widening the schema (#106277, #97913)
- Codex-native tool results now flow through agentToolResultMiddleware at the
post_tool_use relay boundary (observe-only: the Codex PostToolUse contract
cannot replace a native tool response) (#95597)
* test(codex): regenerate prompt snapshots for normalized dynamic-tool schemas
The shared OpenAI strict-compat normalization now runs on Codex dynamic tools,
so empty object schemas gain additionalProperties:false and required:[] in the
snapshot payloads, matching what the OpenAI provider family sends.
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