fix: misleading comment in SierraCasmRunner::new about contract discovery

[sashass1315]

The previous comment stated that the constructor “Find[s] all contracts.”, but SierraCasmRunner::new does not perform any discovery. It takes a precomputed map of class_hash to ContractInfo and stores it. Contract discovery is implemented externally in cairo-lang-starknet (e.g., find_contracts + get_contracts_info) and callers such as the CLI and test runner supply the map. The updated comment clarifies this ownership boundary to prevent confusion and reflects the actual design and usages in casm_run where the runner only reads from starknet_contracts_info.

[reviewable-StarkWare]

This change is 

[orizi]

Reviewable status: 0 of 1 files reviewed, 1 unresolved discussion

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crates/cairo-lang-runner/src/lib.rs line 193 at r1 (raw file):

    ) -> Result<Self, RunnerError> {
        // Receive precomputed contract info (class_hash -> ContractInfo). Discovery is performed by
        // the caller.

was just a leftover most likely - just remove the comment.

[sashass1315]

Reviewable status: 0 of 1 files reviewed, 1 unresolved discussion

crates/cairo-lang-runner/src/lib.rs line 193 at r1 (raw file):

    ) -> Result<Self, RunnerError> {
        // Receive precomputed contract info (class_hash -> ContractInfo). Discovery is performed by
        // the caller.

was just a leftover most likely - just remove the comment.

removed

[orizi]

@orizi reviewed 1 of 1 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @sashass1315)