feat: add BisonFi override templates

[bakasura980]

BisonFi publishes no IDL and is not an Anchor program, so this adds a raw byte-layout write path guarded by account size and magic, plus four templates on it: price, depth, spread and freshness.

Also introduces optional IDLs on templates, so a program without one no longer needs a reconstructed IDL in the repo.

Greptile Summary

The PR adds raw byte-layout scenario overrides for non-Anchor programs without published IDLs and introduces four bundled BisonFi templates.

• Makes template IDLs optional and routes raw-layout overrides before IDL lookup.
• Adds guarded BisonFi price, depth, spread, and freshness byte layouts.
• Adds BisonFi integration coverage and scenario documentation.

Confidence Score: 5/5

The PR appears safe to merge because no blocking failure remains within the scope of the follow-up review.

No blocking failure remains.

Important Files Changed

Filename	Overview
crates/types/src/scenarios.rs	Makes template IDLs optional and defines guarded raw-layout encodings and byte materialization.
crates/core/src/surfnet/svm.rs	Routes raw-layout templates through guarded byte writes while retaining the existing IDL-based path.
crates/core/src/scenarios/registry.rs	Registers BisonFi's IDL-free template collection and adapts registry tests for optional IDLs.
crates/core/src/scenarios/protocols/bisonfi/overrides.yaml	Defines four BisonFi templates with an exact account-size and versioned magic guard.
crates/core/src/tests/bisonfi/mod.rs	Adds live-mainnet integration coverage for BisonFi layouts, override effects, and swap behavior.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Scheduled scenario override] --> B[Resolve target account]
    B --> C{Template has raw_layout?}
    C -->|Yes| D[Validate account size and magic]
    D --> E[Encode supplied property values]
    E --> F[Write bytes at declared offsets]
    F --> G[Store modified account]
    C -->|No| H[Resolve registered program IDL]
    H --> I[Apply IDL-based account override]
    I --> G

Loading

_{Reviews (2): Last reviewed commit: "Merge branch 'feat/kamino-protocol-suppo..." | Re-trigger Greptile}