fix(runtime): negotiate unsupported provider temperature

[seonghobae]

Buyer-visible gap

The pinned Compose runtime must tolerate provider deployments that reject an optional sampling temperature without weakening fail-closed provider handling.

Change

• Pin the runtime image to ContextualWisdomLab/contextual-orchestrator#779 exact head cf4a4501fa5057f89b21cad5033c5925755cd150.
• Record the immutable integration boundary in ADR 0083.
• Keep the regression that synchronizes the Docker archive pin, ADR commit, and upstream provenance.
• Do not select models locally, reimplement provider behavior, or copy credentials into LineageWeave.

Stack and verification

• Stacked on feat: search verified multilingual organization labels #316 at current parent 05c83781c76a3dee4cbe7cfb6d6320b2209b77aa.
• Current head 8fc493c0 after a normal parent restack.
• Python suite: 776 passed, 16 skipped, 4 warnings.
• Frontend lint, 168 tests, production build, Storybook, actionlint, and git diff --check passed.
• The pinned Docker build and isolated runtime evidence were recorded on the unchanged feature commit; rerun the image gate on this exact head before release.

Protected reviews and exact-head Checks remain external merge gates.

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[seonghobae]

@OpenCode review exact HEAD 2b4030a. Verify the immutable upstream pin, ADR synchronization, and provider-temperature fail-closed boundary. Full local suite: 776 passed; exact pinned live gpt-5.6-sol transport succeeded with temperature 0.2.

[seonghobae]

@opencode-agent Please review exact current head 221f8be9bd27e164abf25fd08e14c429ffd7285b. The only follow-up after the fully verified runtime pin is a documentation-contract cleanup: cross-repository references now use linkable ContextualWisdomLab/contextual-orchestrator#779 form. Focused exact-head regression: 1 passed; git diff --check passed. The previous full-suite and live synthetic transport evidence remain behaviorally unchanged.

[seonghobae]

@opencode-agent review exact current HEAD 221f8be. Review the provider temperature capability negotiation and Azure-compatible runtime boundary; publish a formal review.

[seonghobae]

Superseded by #322 exact head 7b710453d27286c307986fb3b0bad4ac27d7c8af, which reuses this PR’s temperature pin commits, removes the backend embedding-selector exposure, adds orchestrator-owned embedding provenance, and pins the combined contextual-orchestrator#791 runtime. No open PR targets this branch, so keeping both would duplicate commits and CI work.