refactor: prefix post folders with date, lock permalinks via slug

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

content/posts/2026-04-20-tale-of-two-realms/index.md

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+---
+title:       "Tale of Two Realms"
+description: "A high-fidelity cinematic masterpiece blending Guillermo del Toro’s Pan's Labyrinth with the iconic visual identity of The Legend of Zelda: Breath of the Wild. In a lush, overgrown stone ruin, a young girl (Ofelia) confronts a towering, ancient Faun. The Faun’s skin is textured like weathered stone and gnarled oak, adorned with glowing teal Zonai filigree and glowing runes. Use a bold cel-shaded aesthetic with clean ink outlines and a vibrant, hand-painted color palette of emerald greens, deep ambers, and twilight blues. The lighting features a soft \"god-ray\" effect filtering through a dense canopy, with floating golden embers and Sheikah-blue bioluminescence."
+date:        2026-04-20
+author:      "valknar"
+featured:    false
+categories:
+  - Forest
+tags:
+  - Pan's Labyrinth
+  - Faun
+  - Zelda
+  - Gothic
+slug: tale-of-two-realms
+---
+