feat: Add WiFi CLI for runtime (re-)configuration

[finger563]

Description

• Update dependencies to latest espp
• Enable c++ exceptions
• Refactor code so that server can be torn down and recreated
• Update code to create server via task spawned from the got ip event handler
• Update code to have more gui functions which are exposed via cli
• Add cli which is run in the main code as the main loop
• Add timeout to udp socket so that it can be cleanly destroyed
• Update readme

Motivation and Context

Previously, the CI builds which were attached to releases had no valid WiFi information, and there was no way to (re-)configure the WiFi network at runtime. There was also no side channel to configure / command the display, except via WiFi. This PR fixes both those issues by adding a CLI which enables NVS-backed WiFi reconfiguration as well as direct GUI control.

How has this been tested?

Build and run main on esp-box and use the GUI to test the various commands

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.

[github-actions]

✅Static analysis result - no issues found! ✅

[Copilot]

Pull Request Overview

Adds a runtime CLI for WiFi and GUI control, refactors server startup/teardown via task on IP event, and updates configurations and docs to support C++ exceptions and new commands.

• Enable C++ exceptions and update dependencies/config
• Refactor app_main and move server setup into event-driven task
• Expose new CLI commands for GUI actions and extend Gui API

Reviewed Changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
sdkconfig.defaults	Turn on C++ exceptions
main/main.cpp	Alias hardware, centralize server logic, add CLI menu and commands
main/idf_component.yml	Adjust dependency rules and add espp/cli
main/Kconfig.projbuild	Clear default SSID/password values
components/gui/src/gui.cpp	Implement new clear_plots and clear_logs with display refresh
components/gui/include/gui.hpp	Declare new clear_plots and clear_logs methods
README.md	Reorganize and expand usage, development, and CLI instructions
.github/workflows/package_main.yml	Update artifact path logic for release packaging

Comments suppressed due to low confidence (3)

main/main.cpp:235

• The start_server function signature expects a std::mutex& but you use a std::recursive_mutex for server_mutex. Either change the parameter to std::recursive_mutex& or switch to a non-recursive std::mutex to avoid type mismatch.

bool start_server(std::mutex &m, std::condition_variable &cv, bool &task_notified) {

.github/workflows/package_main.yml:66

• The workflow removed cd ${{ matrix.build.path }} so this zip command may run in the repo root instead of the build directory. Consider reintroducing cd ${{ matrix.build.path }} or specifying the path in the zip arguments.

        zip -r -j $zip_name build/*.bin build/*.elf build/bootloader/bootloader.bin build/partition_table/partition-table.bin build/flasher_args.json build/flash_args

main/idf_component.yml:17

• Unquoted expressions in rules may not be recognized by the IDF parser. It's safer to quote the condition as if: "target in [esp32s3]" to match the component spec.

    - if: target in [esp32s3]