Implement donate() Smart Contract Function #41
Description
Description:
Implement the main donation entry function in the contract.
Tasks:
- Create donate() function
- Accept donor address (invoker)
- Accept amount and asset
- Accept project_id input
- Validate inputs (amount > 0)
- Store donation in storage
- Emit donation event
- Handle invalid inputs
Acceptance Criteria:
- Donations processed successfully
- Invalid inputs rejected
- Events emitted correctly