Add duras and duras_bridge to CLI section

[sduras]

Adding two related entries:

• duras — plain text daily notes CLI (CLI category)
• duras_bridge — Vim/Neovim plugin for duras (Editor Plugin category)

Checklist:

• The tool is primarily for note-taking or knowledge management
• The description is concise (1-2 sentences) and ends with a period
• The link goes to the official repository (Codeberg)
• Icons are accurate — 📖 plain text files, 🔒 GPG encryption with memory-safe handling
• License is SPDX-compliant: ISC
• Tech stack included: Python / Vimscript/Lua
• duras added to CLI category, duras_bridge added to Editor Plugin category
• Neither entry duplicates an existing tool
• Both projects are actively maintained (last commit within 12 months)

What does this PR do?

Checklist

• I have read the contribution guidelines
• The entry follows the correct format: - [icons] [Name](URL) - Description. \LICENSE` `Tech``
• The tool is not already on the list
• The tool is actively maintained (last commit within 12 months)
• Icons are accurate (checked platform support, sync, encryption)
• The link works and points to the official source
• For open-source tools: license (SPDX) and tech stack are included
• Added to the correct category