[Exp] Add Shadow Hand manager reorientation counterparts

[hujc7]

1. Summary

• Narrows isaac-sim/IsaacLab#6418 from 32 changed files to 17 (+1,275/−61), excluding unrelated Direct, Allegro, camera, and core-environment churn.
• Adds manager counterparts for the Shadow Hand state, OpenAI FF, and OpenAI LSTM reorientation tasks.
• Makes manager Metrics/success_rate Direct-compatible by capturing terminal-step goals before autoreset.
• Fork-only experiment for local review; not intended to merge directly.

2. Type of change

• New feature (non-breaking)
• Bug fix (non-breaking)

3. Design notes

• Preserves released reorientation APIs and keeps success accounting lifecycle-safe across same-step autoreset.
• Keeps goal counting/resampling in the command and episode-success logging in the reward term.
• Reuses existing backend presets and adds no dependencies.

4. Test plan

• 37 focused lifecycle, MDP-term, value-parity, math, and lazy-export tests
• 49 configuration/import-safety tests
• All three new Gym registrations load and validate
• Full pre-commit checks
• Warning-as-error documentation build
• Minor changelog fragment validation

5. Out of scope

• Training runs and reward retuning.
• Generated environment-catalog refresh; that belongs to the later stack layer.