fix: project naming, package metadata, and build scripts

[matejstastny]

Summary

Renames the project from urc-2023 to viator throughout the repo, fills in package metadata, cleans up build/launch scripts, and removes unused test boilerplate.

Rename urc-2023 → viator

• Updated all absolute path references (/home/trickfire/urc-2023 → /home/trickfire/viator) in .devcontainer/devcontainer.json, .devcontainer/docker-compose.yml, .devcontainer/trickfire-can-sudoers, .devcontainer/trickfire.bashrc, .vscode/settings.json
• Renamed Docker image/container references from urc-2023 to viator
• Updated README.md and docs (architecture.mdx, getting-started.mdx, launching.mdx) to reference viator instead of urc-2023, and updated doc links from /urc-2023/... to /viator/...

Package metadata

• Filled out TODO: Package description and TODO: License declaration placeholders in package.xml and setup.py for arm, camera, can_moteus, can_rmdx8, drivebase, heartbeat, mission_control_updater, custom_interfaces, viator_launch
• Set license to Apache-2.0 and added the Apache 2.0 LICENSE file at the repo root
• Unified maintainer email to tfrbtcs@uw.edu across all packages
• Removed example_node exec_depend from viator_launch/package.xml

Build/launch scripts

• Makefile: added clean target (rm -rf build install log), renamed sync-orin target to sync
• scripts/build.sh: cd into repo root before building, use relative --base-paths . instead of hardcoded path
• scripts/launch.sh: cd into repo root, use relative install/setup.bash, export RCUTILS_COLORIZED_OUTPUT=1 for colored logs, removed commented-out modprobe/ip link lines, removed --log-level rosbridge_websocket:=warn flag
• scripts/setup-can-network.sh: added set -e
• scripts/sync-to-orin.sh: hardcoded REMOTE_IP, made REMOTE_PATH default to /home/trickfire/viator, added --delete to rsync

Devcontainer

• .devcontainer/Dockerfile: added ros-humble-cv-bridge apt package, added ROS lib path to ld.so.conf.d and ran ldconfig, pinned numpy<2 in pip install
• .devcontainer/devcontainer.json: changed postCreateCommand from pre-commit install to make hooks
• .devcontainer/trickfire-can-sudoers: replaced the Defaults!...env_delete line with Defaults env_keep+="PYTHONPATH AMENT_PREFIX_PATH"

Code changes

• src/camera/package.xml: added rclpy, cv_bridge, sensor_msgs depends
• src/heartbeat/heartbeat/heartbeat.py: _connection_lost now starts True instead of False; the "Connection active" log only fires at INFO on the transition into connected state, subsequent ticks log at DEBUG
• src/viator_launch/launch/robot.launch.py: commented out can_moteus_node in the launch description (arm not implemented yet), removed a stray blank line

Test cleanup

• Removed test_copyright.py from arm, camera, can_moteus, can_rmdx8, drivebase, heartbeat, mission_control_updater, viator_launch
• Removed test_flake8.py and test_pep257.py from heartbeat
• Removed corresponding ament_copyright/ament_flake8/ament_pep257/python3-pytest test_depends and tests_require=["pytest"] from all packages

[CPrutean]

Good work, description was very lengthy for what changed. One thing I would change however is not removing the testing requirement entirely but instead keep the testing and make a new issue in the repo concerning unit tests. Each node should have its own unit tests and they should all pass. Implement this before merge