chore(skills): move heavy training skills + outlines to optional-skills (#22912)

These skills require heavy GPU/CUDA stacks or are niche enough that they shouldn't
be active by default. Moved to optional-skills/ where users opt-in via
`hermes skills install official/...`.

Moved:
- mlops/training/axolotl
- mlops/training/trl-fine-tuning
- mlops/training/unsloth
- mlops/inference/outlines

Counts: 91 -> 87 built-in, 72 -> 76 optional.

Auto-regenerated docs (per-skill pages + catalogs) reflect the move.

website/docs/user-guide/skills/optional/mlops/mlops-training-unsloth.md

@@ -0,0 +1,98 @@
+---
+title: "Unsloth — Unsloth: 2-5x faster LoRA/QLoRA fine-tuning, less VRAM"
+sidebar_label: "Unsloth"
+description: "Unsloth: 2-5x faster LoRA/QLoRA fine-tuning, less VRAM"
+---
+
+{/* This page is auto-generated from the skill's SKILL.md by website/scripts/generate-skill-docs.py. Edit the source SKILL.md, not this page. */}
+
+# Unsloth
+
+Unsloth: 2-5x faster LoRA/QLoRA fine-tuning, less VRAM.
+
+## Skill metadata
+
+| | |
+|---|---|
+| Source | Optional — install with `hermes skills install official/mlops/unsloth` |
+| Path | `optional-skills/mlops/training/unsloth` |
+| Version | `1.0.0` |
+| Author | Orchestra Research |
+| License | MIT |
+| Dependencies | `unsloth`, `torch`, `transformers`, `trl`, `datasets`, `peft` |
+| Platforms | linux, macos |
+| Tags | `Fine-Tuning`, `Unsloth`, `Fast Training`, `LoRA`, `QLoRA`, `Memory-Efficient`, `Optimization`, `Llama`, `Mistral`, `Gemma`, `Qwen` |
+
+## Reference: full SKILL.md
+
+:::info
+The following is the complete skill definition that Hermes loads when this skill is triggered. This is what the agent sees as instructions when the skill is active.
+:::
+
+# Unsloth Skill
+
+Comprehensive assistance with unsloth development, generated from official documentation.
+
+## When to Use This Skill
+
+This skill should be triggered when:
+- Working with unsloth
+- Asking about unsloth features or APIs
+- Implementing unsloth solutions
+- Debugging unsloth code
+- Learning unsloth best practices
+
+## Quick Reference
+
+### Common Patterns
+
+*Quick reference patterns will be added as you use the skill.*
+
+## Reference Files
+
+This skill includes comprehensive documentation in `references/`:
+
+- **llms-txt.md** - Llms-Txt documentation
+
+Use `view` to read specific reference files when detailed information is needed.
+
+## Working with This Skill
+
+### For Beginners
+Start with the getting_started or tutorials reference files for foundational concepts.
+
+### For Specific Features
+Use the appropriate category reference file (api, guides, etc.) for detailed information.
+
+### For Code Examples
+The quick reference section above contains common patterns extracted from the official docs.
+
+## Resources
+
+### references/
+Organized documentation extracted from official sources. These files contain:
+- Detailed explanations
+- Code examples with language annotations
+- Links to original documentation
+- Table of contents for quick navigation
+
+### scripts/
+Add helper scripts here for common automation tasks.
+
+### assets/
+Add templates, boilerplate, or example projects here.
+
+## Notes
+
+- This skill was automatically generated from official documentation
+- Reference files preserve the structure and examples from source docs
+- Code examples include language detection for better syntax highlighting
+- Quick reference patterns are extracted from common usage examples in the docs
+
+## Updating
+
+To refresh this skill with updated documentation:
+1. Re-run the scraper with the same configuration
+2. The skill will be rebuilt with the latest information
+
+<!-- Trigger re-upload 1763621536 -->