warp-core: tick_patch hygiene (dedup ops, thiserror, docs)

[flyingrobots]

Follow-up cleanup in crates/warp-core/src/tick_patch.rs:

• Avoid double map lookups in diff_store and expand rustdoc (intent/invariants/semantics/edge cases/perf).
• Use thiserror for TickPatchError.
• Document that encode_ops tag bytes are distinct from replay ordering (WarpOp::sort_key).
• Dedupe duplicate ops in WarpTickPatchV1::new to prevent replay errors.
• Alias crate::ident::Hash to ContentHash to avoid confusion with derive(Hash) on SlotId.

This is mechanical hygiene to keep the tick patch boundary deterministic and harder to misuse.

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🔗 Similar Issues

Related Issues

• WarpTickPatchV1 delta patches + commit hash v2 #149
• warp-core: edge reverse index for tick patch replay #152
• warp-core: derive Eq for EdgeRecord (remove edge_record_eq helper) #154
• Promote AIΩN bridge doc + implement tick receipts #144
• Rename legacy RMG naming to WARP + link AIΩN Foundations #142

🔗 Related PRs

#145 - AIΩN bridge doc + tick receipts (#144) [merged]
#148 - warp-core: tick receipt blocking causality [closed]
#150 - WarpTickPatchV1 delta patches + commit hash v2 [closed]
#153 - warp-core: policy_id plumbing + edge replay index [closed]
#155 - warp-core: EdgeRecord derives Eq [closed]

👤 Suggested Assignees

• flyingrobots

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