Type UAV test fakes

[ethayu]

Fixes #244.
Part of #201.
Stacked on #243.

Summary

• Cast ModeManager test doubles to explicit dynamic objects where tests bypass ROS constructors.
• Preserve fake mode constructor annotations while casting the base Mode initialization calls.
• Type the remaining dynamic mission and vision fakes used by runtime tests.

Verification

• python3 -m py_compile controls/sae_2025_ws/src/uav/test/test_auto_launch.py controls/sae_2025_ws/src/uav/test/test_runtime_behavior.py controls/sae_2025_ws/src/uav/test/test_schema_validation.py
• npx --yes pyright controls/sae_2025_ws/src/uav/test/test_auto_launch.py controls/sae_2025_ws/src/uav/test/test_runtime_behavior.py controls/sae_2025_ws/src/uav/test/test_schema_validation.py --outputjson => 0 errors
• ruff format controls/sae_2025_ws/src/uav/test/test_auto_launch.py controls/sae_2025_ws/src/uav/test/test_runtime_behavior.py controls/sae_2025_ws/src/uav/test/test_schema_validation.py
• ruff check controls/sae_2025_ws/src/uav/test/test_auto_launch.py controls/sae_2025_ws/src/uav/test/test_runtime_behavior.py controls/sae_2025_ws/src/uav/test/test_schema_validation.py
• python3 -m pytest -q controls/sae_2025_ws/src/uav/test/test_auto_launch.py controls/sae_2025_ws/src/uav/test/test_runtime_behavior.py controls/sae_2025_ws/src/uav/test/test_schema_validation.py::test_fleet_vehicle_transition_labels_are_case_sensitive => 37 passed

Full touched-file pytest including all of test_schema_validation.py still fails on the pre-existing missing checked-in mission fixture payload_full_run.yaml.

[ethayu]

Condensed into #243 so the UAV test-stub and fake-manager typing changes review together. #243 now fixes #242, #244, and #250.