Improve contract operational documentation and emergency recovery playbooks

[grantfox-oss]

Consolidate operational knowledge for deployment, recovery, and incident handling so developers can respond safely to upgrade, fee, or governance issues without tribal knowledge.

• Affected files: app/contract/README.md, app/contract/CONTRIBUTING.md, app/contract/FEE_CONFIGURATION_GUIDE.md, app/contract/UPGRADE_SAFETY_GATE_QUICK_REFERENCE.md, app/contract/UPGRADE_SAFETY_GATE_TEST_GUIDE.md, app/contract/UPGRADE_SAFETY_GATE_IMPLEMENTATION.md, app/contract/documentation/, app/contract/contracts/Folder/src/metadata.rs
• Acceptance criteria:
  • Deployment and rollback guidance cover the real upgrade and fee-routing paths used by the contract.
  • Recovery procedures explain how to diagnose and mitigate invalid fee, admin, or event-state conditions.
  • Documentation is aligned with actual contract behavior and examples from the test suite.

[Ibinola]

Can i work on this ?

[grantfox-oss]

🦊 GrantFox — @Ibinola has been assigned to this issue as part of the Third Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #541)
2. Your PR will be reviewed by the BlockDash-Studios maintainers

Good luck! Track your progress on GrantFox.

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Third Campaign campaign!

@Ibinola's PR #545 was approved and merged by @MaryammAli.

🏆 @Ibinola: You earned 40 FoxPoints for this contribution! Your current tier: Builder (1,425 total points). Track your full progress on GrantFox.

👏 Great work, @Ibinola! Keep contributing to BlockDash-Studios.