Restructure challenges into current and archive folders

challenges/archive/January-2026.md

@@ -0,0 +1,35 @@
+---
+title: "January 2026: Maker Coin Holder Design"
+category: "challenges"
+subcategory: "2026"
+order: 202601
+description: "January 2026 maker coin and desk display holder challenge."
+tags:
+  - challenge
+  - archive
+  - 2026
+  - challenge-004
+---
+
+# January 2026 Challenge: Maker Coin Holder Design
+
+**Status**: Active
+
+## Challenge Overview
+
+This month's challenge is to design a holder for our **Maker Coin**.
+
+## Details
+
+### Getting the Coin
+To participate, you need a Maker Coin to measure or test your design with.
+- **Pick one up**: Stop by 3D Fuel to grab a physical coin.
+- **Print one**: You can print your own coin!
+  - **Nozzle Requirement**: 0.2mm nozzle is required for the fine detail.
+  - **Model Link**: [Filament Fabricators Maker Coin on MakerWorld](https://makerworld.com/en/models/2115458-filament-fabricators-maker-coin#profileId-2289196)
+
+## Timeline
+
+- **Announcement**: January 2026
+- **Submission**: February 2026
+- **Judging**: February 2026