docs: PAI v2.1.0 - Pack expansion & polish update

README.md:
- Bumped version badge to 2.1
- Added Updates link to quick navigation
- Added v2.1.0 changelog entry documenting:
  - New packs: Prompting Skill, Agents Skill
  - Pack updates: Voice System icon, Art Pack v1.1.0
  - Documentation consistency improvements
  - Authentication standardization
  - Infrastructure reorganization

Packs/kai-voice-system.md:
- Added Quick Navigation with Changelog link
- Updated 1.1.0 changelog to note icon update
- Reverted version to 1.1.0 (icon update, not breaking change)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: danielmiessler

Packs/kai-voice-system.md

@@ -1,7 +1,7 @@
 ---
 name: Kai Voice System
-pack-id: danielmiessler-kai-voice-system-core-v2.0.0
-version: 2.0.0
+pack-id: danielmiessler-kai-voice-system-core-v1.1.0
+version: 1.1.0
 author: danielmiessler
 description: Voice notification system with ElevenLabs TTS, prosody enhancement for natural speech, and agent personality-driven voice delivery
 type: feature
@@ -43,6 +43,8 @@ When tasks complete, you hear the results. When agents finish work, they announc
 
 Please follow the installation instructions below to integrate this Pack into your infrastructure.
 
+**Quick Navigation:** [What's Included](#whats-included) | [The Problem](#the-concept-andor-problem) | [The Solution](#the-solution) | [Installation](#installation) | [Troubleshooting](#troubleshooting) | [Configuration](#configuration) | [Changelog](#changelog)
+
 ---
 
 ## What's Included
@@ -2781,8 +2783,9 @@ If the voice server is offline:
 
 ## Changelog
 
-### 1.1.0 - 2025-12-29
+### 1.1.0 - 2025-12-29 (Updated 2025-12-30)
 - **END-TO-END COMPLETE RELEASE**
+- Updated pack icon with new Kai Voice System design (cache-busted filename)
 - Added complete voice server implementation (server.ts)
 - Added server management scripts (install.sh, start.sh, stop.sh, restart.sh, status.sh)
 - Added macOS LaunchAgent auto-start configuration

README.md

@@ -15,7 +15,7 @@
 
 <br/>
 
-[![Version](https://img.shields.io/badge/version-2.0-blue?style=for-the-badge)](https://github.com/danielmiessler/Personal_AI_Infrastructure/releases)
+[![Version](https://img.shields.io/badge/version-2.1-blue?style=for-the-badge)](https://github.com/danielmiessler/Personal_AI_Infrastructure/releases)
 [![License](https://img.shields.io/badge/license-MIT-green?style=for-the-badge)](LICENSE)
 [![Packs](https://img.shields.io/badge/packs-8-purple?style=for-the-badge)](Packs/)
 [![Bundles](https://img.shields.io/badge/bundles-1-orange?style=for-the-badge)](Bundles/)
@@ -28,7 +28,7 @@
 
 **Development:** [Create a Pack](#-for-pack-developers) · [Platform Support](#️-platform-compatibility) · [Contributing](#-contributing)
 
-**Resources:** [FAQ](#-faq) · [Documentation](#-documentation) · [Community](#-community) · [Roadmap](#-roadmap)
+**Resources:** [FAQ](#-faq) · [Documentation](#-documentation) · [Community](#-community) · [Roadmap](#-roadmap) · [Updates](#-update-history)
 
 <br/>
 
@@ -727,6 +727,41 @@ If you find it valuable:
 ## 📜 Update History
 
 <details open>
+<summary><strong>v2.1.0 (2025-12-30) — Pack Expansion & Polish</strong></summary>
+
+<br/>
+
+**New Packs Released**
+- **Kai Prompting Skill** (v1.0.0) - Meta-prompting system with templates, standards, and dynamic prompt generation
+- **Kai Agents Skill** (v1.0.0) - Dynamic agent composition with personality mapping and parallel orchestration
+
+**Pack Updates**
+- **Kai Voice System** - New pack icon with refined design (cache-busted for immediate updates)
+- **Kai Art Pack** (v1.1.0) - Multi-reference image support for complex visual compositions
+
+**Documentation & Quality**
+- Standardized authentication to single `$PAI_DIR/.env` location across all packs
+- Enhanced wizard clarity for installation flows (addressing #259, #260, #261)
+- Safer verification patterns for security hooks
+- Consistency pass across all pack documentation
+- Updated pack manifests with accurate dependencies
+
+**Infrastructure**
+- Reorganized Tools directory with AI usage guide
+- Added Tools README with icons and descriptions
+- Moved templates and diagnostic tools to centralized location
+
+**What's Different from v2.0?**
+
+v2.0 launched the Packs system. v2.1 expands and polishes it:
+- 8 feature packs now available with improved documentation
+- Better installation experience with clearer wizards
+- Unified authentication pattern (no more scattered .env files)
+- Professional pack icons for visual consistency
+
+</details>
+
+<details>
 <summary><strong>v2.0.0 (2025-12-28) — PAI Packs System Launch</strong></summary>
 
 <br/>