Add missing write_bool_input method to SafeBufferAccess

[devin-ai-integration]

Summary

Adds the missing write_bool_input method to the SafeBufferAccess class. This method was inadvertently omitted when the write_*_input methods were added in a previous commit, causing runtime errors when the Modbus master plugin attempts to write boolean values to PLC input buffers (e.g., %IX addresses).

Error being fixed:

(FAIL) Error in write_preconverted_iec_values: 'SafeBufferAccess' object has no attribute 'write_bool_input'

The new method follows the same pattern as write_bool_output and other write_*_input methods.

Review & Testing Checklist for Human

• Verify the method signature matches the call site in modbus_master_memory.py (lines 270, 540) - expects (buffer_idx, bit_idx, value, thread_safe=False)
• Test with a Modbus master configuration that writes to boolean input addresses (%IX) to confirm the error is resolved
• Verify CI tests pass, particularly tests/pytest/modbus_master/test_modbus_slave_device.py which expects this method to exist

Recommended test plan: Deploy a runtime container built from this branch and run a PLC program that uses Modbus master to write to %IX addresses. The write_preconverted_iec_values error should no longer occur.

Notes

• Link to Devin run: https://app.devin.ai/sessions/2cdfc6eefc964b5aad70fbe7ff9ceb0a
• Requested by: Thiago Alves (@thiagoralves)

[devin-ai-integration]

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