feat: add NimmerSky modlist foundation

- Visions of Vaermina reference list parsed into sections
- Community Shaders guide with PGPatcher setup
- Body/animation stack documentation
- CSV/ODS tracking spreadsheets

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

sections/VFX_-_Later_Loaders.txt

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++ElSopa - Medieval Anvil Embers XD Patch
++ElSopa - HD Medieval Anvil SE
++Tel Mithryn Overhaul - High Poly and Improved Meshes - Lux
++Tel Mithryn Overhaul - High Poly and Improved Meshes - Lux Orbis
++High Hrothgar Fixed - Lux Orbis Parallax Patch
++High Hrothgar Fixed - Lux Parallax Patch
++High Hrothgar Fixed - Parallax
++FYX - 3D Shack Kit Walls - BOS - LUX PATCH
++FYX - Jarl Longhouse - Consistent interior
++MIC - Embers XD Patch
++Embers XD
++Mesh Improvement Compilation - Lux
++Mesh Improvement Compilation - Lux Orbis
++Vanaheimr - Mines and Caves - CPM - Lux Patch
++Vanaheimr - Ice
++Icy Mesh Remaster
++FYX - Candlehearth Hall Chimney - Icy Windhelm
++MIC - Icy Windhelm Patch
++Icy Windhelm
++Fixed Meshes for Rugnarok - Lux Patch
++BP Courtyard - Lux Orbis Patch
++Lux - The Great Village of Ivarstead update
++Lux - JK's Blue Palace update patch for the 2.0
++Lux - COTN Falkreath updated patch
++Lux - JK's Thieves Guild
++Lux (patch hub)
++Lux Orbis (patch hub)
++Lux - Via (patch hub)
++Lux - USSEP latest version update
++Lux
++Drengin's Blue Palace - Mesh Only Replacer
++Lux Orbis
++Lux Via - Kynareth Addon
++Lux Via