CELE-149 Add hook system to plug conversion scripts for synapses

[aranega]

coordinate computation

[Copilot]

Pull Request Overview

This PR implements a hook system for coordinate conversion of synapse 3D models during ingestion. The change allows users to provide custom conversion scripts to transform synapse coordinates, replacing hardcoded coordinate transformation logic.

• Adds dynamic loading of conversion scripts from synapse directories
• Replaces hardcoded .obj file coordinate transformation with pluggable conversion system
• Updates documentation to explain the new conversion script feature

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
ingestion/ingestion/ingest.py	Implements the hook system with dynamic script loading and removes hardcoded coordinate transformation
ingestion/README.md	Documents the new conversion script feature with examples and file structure

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