ETR01SDK-511: Prepare esp32 examples and tests

[medexs]

Description

Integrate ESP32 into the monorepo.

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Type of Change

Select the type(s) that best describe your change:

• 🐛 Bug fix
• ✨ New feature
• 🧹 Code cleanup or refactoring
• 📝 Documentation update
• 🔧 Build system or toolchain update
• 🔒 Security improvement
• Other (please describe):

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Checklist

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• I opened the Pull Request to the develop branch
• I followed the project's code guidelines
• I formatted the code using clang-format with the recommended configuration
• I updated the changelog, or this change does not require it (e.g., internal or non-functional update)
• The project builds without errors or warnings
• I have verified the functionality against the hardware/model as applicable
• I have ensured that public APIs remain backward compatible (if applicable)
• This PR is ready for review by maintainers (no WIP commits left) and marked as Ready for Review

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[Copilot]

Pull request overview

This PR integrates ESP32 platform support into the libtropic monorepo, adding comprehensive examples and functional tests for ESP32-DevKit-V4 and ESP32-S3-DevKitC-1 boards.

Changes:

• Added LT_CAL_LINK_DEPS CMake option to control CAL dependency linking
• Created ESP32 functional test infrastructure with automated build and test scripts
• Added three example applications (hello_world, identify_chip, fw_update) for both ESP32 boards
• Updated documentation to replace "ESP-IDF" references with "ESP32"

Reviewed changes

Copilot reviewed 47 out of 47 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
tests/functional/src/CMakeLists.txt	Added LT_CAL_LINK_DEPS option to conditionally link CAL dependencies
tests/functional/esp32/run_test.sh	Script for flashing and monitoring ESP32 tests
tests/functional/esp32/download_deps.sh	Downloads and verifies test dependencies (ed25519, micro-ecc)
tests/functional/esp32/common.cmake	Common CMake configuration for ESP32 functional tests
tests/functional/esp32/*/sdkconfig	ESP-IDF SDK configuration files for each board
tests/functional/esp32/*/main.c	Test entry point for ESP32 boards
tests/functional/esp32/*/CMakeLists.txt	Board-specific test build configuration
examples/esp32///	Three example applications for both ESP32 boards
mkdocs.yml	Updated documentation navigation
docs/other/supported_host_platforms/*	Renamed and updated ESP-IDF documentation to ESP32
docs/get_started/tutorials/esp32/index.md	New ESP32 tutorial
.github/workflows/esp32_build_examples.yml	CI workflow for building ESP32 examples

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[andreondra]

Just have a look at the tests/functional/src/CMakeLists.txt. Other than that it's OK.