[Docs] Document Notification Failure Recovery Workflow

[Abd-Standard]

Description

Expand the documentation with a complete guide explaining how failed notifications are detected, retried, and monitored.

Tasks
Describe retry lifecycle.
Include architecture diagram references.
Document configuration options.
Add troubleshooting section.

Acceptance Criteria
Recovery process is clearly documented.
Examples are accurate.
Documentation follows project style guidelines.

[bashir1738]

Gm I would like to work on this ETA 3hrs

[grantfox-oss]

🦊 GrantFox — @bashir1738 has been assigned to this issue as part of the Official Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #64)
2. Your PR will be reviewed by the Core-Foundry maintainers

Good luck! Track your progress on GrantFox.

[grantfox-oss]

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

@bashir1738's PR #70 was approved and merged by @Abd-Standard.

🏆 @bashir1738: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (363 total points). Track your full progress on GrantFox.

👏 Great work, @bashir1738! Keep contributing to Core-Foundry.