[PT1-97] Fixes after OpenZeppelin audit review

[Sunnesoft]

1. Added missing Docstrings to Immutables lib.
2. Modifier onlyTaker() naming Improvement
3. Added Fee Amount check in order creation flow

[Copilot]

Pull Request Overview

This PR implements fixes based on OpenZeppelin audit feedback, focusing on code quality improvements and security enhancements.

• Added comprehensive docstrings to all functions in the ImmutablesLib library
• Renamed modifier from onlyTaker to onlyCaller for better semantic clarity
• Added fee validation to prevent excessive fees during order creation

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
contracts/libraries/ImmutablesLib.sol	Added complete docstring documentation for all public functions
contracts/BaseEscrow.sol	Renamed modifier from onlyTaker to onlyCaller for improved naming
contracts/EscrowSrc.sol	Updated modifier references to use the renamed onlyCaller
contracts/EscrowDst.sol	Updated modifier references to use the renamed onlyCaller
contracts/BaseEscrowFactory.sol	Added fee amount validation to prevent excessive fees
test/integration/EscrowFactory.t.sol	Re-enabled a previously skipped test
Makefile	Fixed typo in .PHONY declaration
.gas-snapshot	Updated gas consumption values after code changes

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