[TATP-233]

Summary

• apply cold-reset seeds before initialization and remove the unused reset options parameter without a compatibility layer
• run RSL-RL/APPO/SAC/FlashSAC sim2sim preflight before playback environment construction
• clarify full-width reset observations and fix the corresponding integration assertion
• correct and strengthen the RL adapters import-boundary guard

Linked Work

• Closes fix(env): 首次 reset 应用 seed 并明确 options 语义 #2538
• Closes fix(playback): 在环境构造前执行 sim2sim 配置校验 #2539
• Closes docs(contract): 修正 partial reset 返回 full-width observations 的描述 #2540
• Closes test(boundary): 修正 adapters DAG 路径与覆盖盲区 #2541
• Integrated child PRs: fix(env): apply seed before cold reset #2543, fix(playback): validate sim2sim before env creation #2544, test(boundary): cover adapter import boundaries #2545, fix!: remove reset options parameter #2546, docs(contract): clarify full-width reset observations #2547
• Base branch: main
• Contracts: ADR-0011 / ADR-0012

Validation

• make test-all passed on the final local head before this PR was created
• Additional task-specific validation listed below

uv run pytest tests/envs/test_manager_based_rl_env.py -k reset
# 25 passed, 90 deselected

uv run pytest tests/visualization/test_interactive_playback.py tests/training/test_sim2sim_resolver.py
# 92 passed

uv run pytest tests/test_library_import_boundary.py
# 27 passed

uv run pytest tests/envs/test_observation_partial_reset.py -m slow -rs
# 1 passed (actually executed with MuJoCo)

make test-all
# make check passed
# 2849 passed, 62 skipped, 375 deselected
# benchmark smoke: 35/35 module-mode and 36/36 script-mode imports passed

Remote CI route: base main; current-head CI is pending and will be recorded on this PR.

Impact

• Backend impact: both; common reset and playback paths
• Platform impact: both
• Training effect expected: yes; explicit cold-reset seeds now work and the unused reset options keyword is removed

Artifacts

None.

Checklist

• Added and corrected regression tests
• Updated the public reset contract documentation
• Linked all four driving issues and integrated child PRs
• No known follow-up work; final merge is reserved for the maintainer

[TATP-233]

Current-head CI verification for 8a93187ab96b5ede353e2c2e28ec5962576e363c:

• CI: https://github.com/Motphys/UniLab/actions/runs/40693347812 — all jobs passed
• Sphinx: https://github.com/Motphys/UniLab/actions/runs/40693347641 — passed

Local final-head gate: make test-all passed with 2849 passed, 62 skipped; focused reset/playback/boundary tests and the slow full-width integration test also passed.