docs: add vesting wallet examples

[0xNeshi]

Towards #156
Updates PR #395

PR Checklist

• Tests
• Documentation
• Changelog

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on base/target branches other than the default branch.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 604581bd-b350-4d74-9b25-9b4262761f10

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/vesting-wallet-examples

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[Copilot]

Pull request overview

Adds integration examples for the openzeppelin_finance vesting wallet, and wires those examples into the finance package documentation so downstream users have concrete patterns to follow.

Changes:

• Link contracts/README.md and contracts/finance/README.md to new vesting wallet integration examples.
• Add three example Move modules demonstrating: a custom schedule curve (vesting_quadratic), a curve-agnostic pausable wrapper (pausable_grant), and a beneficiary-as-object payout splitter (splitter).
• Add unit tests validating the examples’ end-to-end composition and key invariants.

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/README.md	Adds a pointer to the finance vesting wallet examples directory.
contracts/finance/README.md	Introduces an “Examples” section documenting the new integration patterns and links.
contracts/finance/examples/vesting_wallet/vesting_quadratic.move	Implements a quadratic vesting curve module intended for direct composition with vesting_wallet.
contracts/finance/examples/vesting_wallet/pausable_grant.move	Adds a generic, curve-agnostic pausable wrapper around VestingWallet.
contracts/finance/examples/vesting_wallet/splitter.move	Adds a Beneficiary splitter object that disperses received payouts by weight.
contracts/finance/examples/vesting_wallet/tests/vesting_quadratic_tests.move	Tests composing the quadratic schedule with the core wallet lifecycle and invariants.
contracts/finance/examples/vesting_wallet/tests/pausable_grant_tests.move	Tests pause/resume behavior and admin-cap binding for the wrapper pattern.
contracts/finance/examples/vesting_wallet/tests/splitter_tests.move	Tests weighted fan-out behavior and rounding conservation for the beneficiary-as-object pattern.