Refactor/law stone minor refactoring

[ccamel]

Just ensure safer conversion of object_ref URI into Prolog atom when querying for source files in the law-stone smart contract.

AFAIK, the old implementation didn’t have any security issues by design, but this update uses a safer conversion function that handles escaping properly. Just keeping things a bit more robust, you know, for good measure.

[bot-anik]

size-limit report 📦

Path	Size
target/wasm32-unknown-unknown/release/axone_objectarium.wasm	459.15 KB (0%)
target/wasm32-unknown-unknown/release/axone_law_stone.wasm	595.11 KB (+0.17% 🔺)
target/wasm32-unknown-unknown/release/axone_cognitarium.wasm	883.1 KB (0%)
target/wasm32-unknown-unknown/release/axone_dataverse.wasm	698.22 KB (0%)

[codecov]

Codecov Report

Attention: Patch coverage is 97.05882% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
packages/axone-logic-bindings/src/atom.rs	96.55%	1 Missing ⚠️

Files with missing lines	Coverage Δ
contracts/axone-law-stone/src/contract.rs	96.09% <100.00%> (-0.01%)	⬇️
packages/axone-logic-bindings/src/atom.rs	96.55% <96.55%> (ø)

... and 7 files with indirect coverage changes