Bump version to v0.1.2 for agentic-core and ruixen; update release notes for Obsidian integration and terminal compatibility

Author: gitcoder89431

Cargo.lock

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+## 🐛 Critical Hotfix: Terminal.app Color Compatibility
+
+This patch release fixes a critical issue where Ruixen displayed incorrectly in pink/magenta colors on macOS Terminal.app, while working perfectly in iTerm2 and other modern terminals.
+
+### 🔧 What's Fixed
+- **Terminal Detection**: Added smart terminal detection using `$TERM_PROGRAM` environment variable
+- **Color Fallback**: Terminal.app now uses indexed colors instead of RGB colors for perfect compatibility
+- **Preserved Quality**: iTerm2, VS Code terminal, and other modern terminals still get beautiful Everforest RGB colors
+
+### 🚀 Installation
+Install the latest version:
+```bash
+cargo install ruixen
+```
+
+Or download platform-specific binaries from the release assets below.
+
+### 💡 Technical Details
+- Detects Terminal.app via `TERM_PROGRAM=Apple_Terminal`
+- Provides indexed color fallback (Color::Green, Color::White, etc.)
+- Maintains full RGB color support for modern terminals
+- No performance impact or feature degradation
+
+### 🎯 First Impressions Matter
+This ensures Ruixen works beautifully across all macOS terminal environments, providing the best possible first experience for new users.
+
+---
+🦀 Built with Rust | 🤖 AI-Collaborative Development

release-notes/release-notes-v0.1.1.md

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+## 🆕 Obsidian Integration Feature Added
+
+This feature release adds native **Obsidian compatibility** to Ruixen's atomic notes system! Your saved insights now seamlessly integrate with the world's most popular knowledge management tool.
+
+### ✨ New Features
+- **🔗 Native Obsidian Support**: Atomic notes now use Obsidian-native YAML tag format
+- **📊 Graph View Integration**: Tags automatically appear in Obsidian's knowledge graph
+- **🏷️ Tag Navigation**: Click tags to explore related notes and build connections
+- **🌐 Knowledge Network**: Watch your insights form natural clusters and relationships
+
+### 🚀 Installation
+Install the latest version:
+```bash
+cargo install ruixen
+```
+
+Or download platform-specific binaries from the release assets below.
+
+### 🎯 How It Works
+- Ruixen generates tags in pure YAML array format: `[astronomy, science, curiosity]`
+- Drop your `~/Documents/ruixen/` folder into any Obsidian vault
+- Tags instantly become clickable, searchable, and graph-connected
+- Build a living knowledge network from your AI conversations
+
+### 🧠 Knowledge Management Revolution
+Transform your Ruixen conversations into:
+- **Connected Insights**: See how topics naturally relate in graph view
+- **Searchable Wisdom**: Find past explorations through tag navigation  
+- **Evolving Understanding**: Watch your curiosity patterns emerge over time
+- **Research Foundation**: Build upon previous insights and discoveries
+
+---
+🦀 Built with Rust | 🤖 AI-Collaborative Development