feat: add --gas to contract deploy and write

[MuncleUscles]

Delivery context

Depends-On: genlayerlabs/genlayer-js#215

Problem and outcome

Contract deploy/write commands expose GenLayer fee controls but previously offered no way to set the outer EVM transaction gas limit. Large deployment calldata could therefore hit the SDK's old 200,000 fallback and fail with intrinsic gas too low before GenLayer accepted the transaction.

This PR:

• adds --gas <units> to genlayer deploy and genlayer write;
• accepts positive decimal or hexadecimal integer quantities;
• forwards the parsed bigint as the SDK's top-level gas option;
• describes it explicitly as the outer EVM limit, separate from GenLayer fee budgets;
• pins genlayer-js commit 869ef09a0a54c2f47a5ecf59a6caa6c2d0db6208, the exact implementation in dependency PR chore: renovate updates #215;
• updates generated deploy/write command references.

This is an organization-owned replacement for #404 and credits @ygd58 for the original CLI gas-option proposal and test approach.

Implementation and validation

• npm test -- --run — 808 tests passed against the pinned genlayer-js commit.
• npm run build — passed.
• npm run docs:cli — generated and verified the deploy/write references.
• Added parser coverage for decimal, hex, absent, zero, negative, fractional, underscore, and non-numeric values.
• Added action and command wiring coverage for both deploy and write.

The full wallet-session suite was run at host level because those tests bind to loopback; its initial sandbox-only failures were all listen EPERM 127.0.0.1 and passed unchanged at host level.

Decisions, risks, and rollback

• --gas remains a sibling of --fees, not a field inside it: the former controls the outer EVM envelope while the latter controls GenLayer budgets.
• The CLI does not invent a fallback or recommend a network-wide magic number; omission delegates to SDK estimation/headroom.
• The dependency is pinned to the exact reviewed JS commit, so the CLI cannot silently ship this flag against an older runtime.
• Reverting this commit removes the flag and restores the previous dependency pin.

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