feat(textures): author authentic stone, diamond ore, and coal ore vector masters

[anjana005]

Description

Author high-fidelity vector (SVG) masters and un-rotated blockstates for Stone, Diamond Ore, and Coal Ore matching the official cinematic Minecraft trailer aesthetic (#28):

• Stone (textures/stone.svg):
  • Calibrated authentic neutral Minecraft stone gray palette (#7e8187).
  • Tactile 3D pop-down recessed striation grooves with top crevice cast shadows (#3c3e44) and lower sunlit shelf highlights (#a4a7ae).
  • Strict 32px texel grid alignment and 100% toroidal boundary wrapping across canvas edges ($X=0 \leftrightarrow X=512$).
• Diamond Ore (textures/diamond_ore.svg):
  • 1:1 synchronized stone background shared with stone.svg.
  • 3D pop-up crevice drop shadows (#202a33 at 95% opacity) creating distinct physical elevation.
  • Vibrant electric cyan (#2ee2d2) and deep teal (#137f76) crystal bodies with crisp sunlit bevel highlights (#cafffa, #4eebd9) and clean specular sheen sparks.
• Coal Ore (textures/coal_ore.svg):
  • 1:1 synchronized stone background shared with stone.svg.
  • 3D pop-up drop shadows (#26282f at 95% opacity) elevating charcoal nodules above the stone base.
  • High-contrast jet-black bodies (#181b22), crisp sunlit bevels (#8e96a5), and specular lustre glints.
• Blockstates (pack_template/assets/minecraft/blockstates/):
  • Added single-variant stone.json override to suppress vanilla random 3D rotations and preserve toroidal continuity.
  • Included diamond_ore.json and coal_ore.json.
• Documentation:
  • Updated CHANGELOG.md [Unreleased] with the stone and ores set.

Note: Part of #28. Cobblestone will be completed in a subsequent iteration.

Affected Assets

• textures/stone.svg
• textures/diamond_ore.svg
• textures/coal_ore.svg
• pack_template/assets/minecraft/blockstates/stone.json
• pack_template/assets/minecraft/blockstates/diamond_ore.json
• pack_template/assets/minecraft/blockstates/coal_ore.json
• CHANGELOG.md

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Type of Change

• feat: New vector texture master, blockstate, or compiler capability
• fix: Tiling fix, palette correction, or bugfix
• docs: Documentation improvement
• chore / refactor: Maintenance, dependencies, or codebase cleanup

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Contributor Checklist

Vector Texture Standards (if adding/modifying SVGs)

• Authored as a clean $512\times512$ SVG (viewBox="0 0 512 512").
• Primary shapes are aligned to the $32\text{px}$ texel grid ($16\times16$ grid).
• Seamless Toroidal Tiling: Checked and verified that elements wrapping across $X$ and $Y$ edges align perfectly without seams or chopped shapes.
• Ore Consistency: If adding an ore texture, the stone background geometry and corner radius (rx) match textures/stone.svg exactly.
• Free of leftover AI generation comments, unnecessary editor namespaces, or embedded raster images.

Build & Verification

• Ran npm run build locally and verified that the pack compiles successfully.
• Verified textures in-game or inspected the rasterized PNG outputs in dist/.

Git Hygiene & Standards

• Commit message(s) follow Conventional Commits (e.g., feat(textures): ...).
• Every commit is signed off with the Developer Certificate of Origin (git commit -s).
• Branch is rebased cleanly onto latest main with no merge commits.
• Formatting complies with .editorconfig (2-space indent, LF endings, trailing newline).

Ref #28

[ninja6-agent]

LGTM! 🚀 Verified 1:1 stone background synchrony across stone.svg, diamond_ore.svg, and coal_ore.svg, exact toroidal seam wrapping, single-variant un-rotated blockstates, and clean compilation across all 5 resolution tiers.