added the "set_bytes" tool to /handlers/set

[Jegghins]

Add "set_bytes" endpoint

This commit introduce new endpoint to the GhidraMCP plugin that enable writing raw bytes directly to the program memory.

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New features:

• /set_bytes: Write a sequence of bytes (hexadecimal, space-separated) to a given memory address.

Technical Details:

• set_bytes:
  • Parameters: address (hex string), bytes_hex (space-separated hex)
  • Returns: Success/error status

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Example of use case:

Context:

I used the endpoint to alter specific byte sequences in an old game.

Patching memory with /set_bytes

Used the set_bytes endpoint to overwrite a specific instruction at address 0x0804d384, replacing a CALL to the rob_new function with 5 NOP instructions (0x90). This effectively disables enemy spawning in the game. Verified the change by reading back the bytes.

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Security Considerations:

• These endpoints modify program memory directly
• Intended for reverse engineering and analysis purposes
• Use with caution on production systems

[DaCodeChick]

Oh wow! I'll merge this later today. Great job!