feat: add dispute resolution contract and update build configurations

[GiftedGiftB]

closed #50

Creating a short TODO plan, then I'll add three files: a PR description, a changelog entry, and a GitHub PR template.

Created 3 todos

Now I'll create the PR description, PR template, and changelog files.

Created

Created

Created

Completed: Create PR description file (1/3)

Progress: created PR docs and templates; next you can review and open the PR.

Files added

• PR_DESCRIPTION.md — full PR description and testing notes.
• PULL_REQUEST_TEMPLATE.md — repo PR template.
• CHANGELOG.md — changelog entry for the changes.

What you can do now

• Review PR_DESCRIPTION.md and copy it into the GitHub PR body when opening the PR.
• Create the PR and run CI; optionally run the testnet integration steps listed.

Commands to run locally

# run dispute contract tests
cargo test -p dispute_resolution_contract

# build dispute WASM
make build-dispute

# run full test suite
cargo test

Would you like me to open a PR locally (create branch + commit + push) using these files and suggest a title and reviewers?

Made changes.