Submit immutable prediction missions through the existing ACK Job contract

[proerror77]

Parent

#240

What to build

Provide one minimal research-only dispatcher that validates an immutable prediction mission submission and creates or renders the repository's existing ACK Job contract. Each submission binds one exact image digest, mission object and SHA, snapshot object and SHA, unique immutable result object, bounded resource profile, and optional complete resume pair. Kubernetes remains the queue; no new scheduler service or database is introduced.

The dispatcher performs render and submission only. Read-only milestone status is split to #246 because it is an independently testable and revertible rollout unit. This issue does not build images, compile snapshots, interpret research results, deploy a collector, or promote a strategy.

Acceptance criteria

• One command accepts a bounded mission submission and produces the existing prediction ACK Job shape with no source compilation.
• Mutable image tags, missing image digests, incomplete mission/snapshot identity pairs, duplicate or mutable result identities, and incomplete resume pairs are rejected before Job creation.
• Mission, snapshot, image, evaluator, resource, result, and attempt identities are visible in stable Job labels/annotations or the submitted execution contract.
• The dispatcher supports render/dry-run mode that performs no Kubernetes mutation.
• Submit mode requires explicit cluster/namespace context and creates only the requested research Job and short-lived input Secret needed by that Job.
• Parallel submissions receive isolated work/result identities and never share a writable DuckDB or result directory.
• Focused tests cover one valid render and rejection of a mutable image reference, mutable result identity, duplicate output identity, and incomplete resume pair.
• No Kafka, Redis, Argo Workflow, custom operator, live-trading authority, or exchange credential is added.

Blocked by

None - can start immediately.

[proerror77]

Write ownership: this task owns branch codex/prediction-research-dispatcher-242 and worktree .worktrees/codex/prediction-research-dispatcher-242. Scope is the minimal immutable prediction ACK Job dispatcher/render/status contract plus focused tests only; #236/#241/#243, collector, evaluator/MCTS, and live trading remain out of scope.

[proerror77]

Scope split at the repository 750-line guardrail: this issue now owns immutable render/submit and duplicate-output prevention only. Independently testable read-only milestone reporting is tracked in the new dependent issue and will be implemented after #242 merges; it will consume #242 annotations without changing submission behavior.