feat(ecad): Update ECAD to support latest atopile and fix some bugs

[finger563]

• feat(ecad): Update ecad / atopile and improve workflow
• add step file to repo
• add box-3 step file
• improve workflow

Description

Motivation and Context

How has this been tested?

Screenshots (if appropriate, e.g. schematic, board, console logs, lab pictures):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update
• Hardware (schematic, board, system design) change
• Software change

Checklist:

• My change requires a change to the documentation.
• I have added / updated the documentation related to this change via either README or WIKI

Software

• I have added tests to cover my changes.
• I have updated the .github/workflows/build.yml file to add my new test to the automated cloud build github action.
• All new and existing tests passed.
• My code follows the code style of this project.

Hardware

• I have updated the design files (schematic, board, libraries).
• I have attached the PDFs of the SCH / BRD to this PR
• I have updated the design output (GERBER, BOM) files.

[Copilot]

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[github-actions]

ESP-IDF Size Report for 'Esp Box Emu'

Metric	Base	PR	Delta
FLASH	3,137,420 bytes (49.87%)	3,137,420 bytes (49.87%)	0 bytes (0.00%)
DRAM	179,439 bytes (52.50%)	179,439 bytes (52.50%)	0 bytes (0.00%)
IRAM	0 bytes	0 bytes	0 bytes
RAM (DRAM+IRAM)	179,439 bytes	179,439 bytes	0 bytes (0.00%)

_{FLASH uses app .bin size or json2 flash sum. RAM sums DRAM+IRAM via idf_size. Percentages shown when totals are available.
DRAM/IRAM usage does not include memory used by the heap allocator at runtime.
This report was generated by esp-idf-size-delta.}