PR_BODY.md

This pull request implements comprehensive enhancements to ProofOfHeart-stellar, bringing stability, event persistence, strict documentation, and precise boundary constraints to the platform.

Changes Implemented

• Graceful Failure on Missing Campaigns: get_campaign now returns Result<Campaign, Error> applying ok_or(Error::CampaignNotFound). This eradicates panic scenarios when attempting to access a nonexistent or removed campaign dynamically. Associated unit tests have been updated with robust try_get_campaign tests.
• Initialization Events: The init function now persistently triggers an "initialized" event right after environmental configurations are registered. This includes details of the globally bounded platform_fee, executing admin, and the authorized base token references.
• Comprehensive RustDocs: Applied extensive contextual /// documentation blocks across all struct typings, categorical enums, parameter variants, and the 23 public contract commands spanning ProofOfHeart. These updates encapsulate precise behaviors concerning # Arguments, # Returns, # Errors, and specific # Authorization restrictions, fully enabling auto-generated API outputs.
• Deadline Boundary Constraints: Injected test_deadline_boundary inside src/test.rs to securely map Soroban ledger timestamps. This strictly asserts boundaries succeed cleanly exactly at the initialized campaign deadline, but yield the appropriate Error::DeadlinePassed exactly at deadline + 1.

Closes #17, Closes #29, Closes #26, Closes #8