feat: Add pai-knowledge bundle for knowledge capture and retrieval

[mellanon]

Summary

Knowledge management bundle implementing the first layers of the Knowledge Transformation Stack: CAPTURE, STORE, and CULTIVATE (Sweep practice).

How It Works

📱 Device → Telegram → ingest daemon → Obsidian vault
                                            ↓
                    Claude ← ctx load ← ctx search

CLI Commands

Command	Purpose
ingest watch	Background daemon for Telegram polling
ctx search	Semantic search across vault
ctx load	Load notes into Claude context
ctx sweep	Daily inbox triage

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What This Adds

Bundle (Bundles/pai-knowledge/)

Component	Purpose
install.ts	Interactive installation wizard
tools/ingest/	Telegram capture CLI
tools/ctx/	Search and retrieval CLI
shortcuts/	iOS/macOS shortcut templates
templates/	.env, LaunchAgent plist, profiles

Skill Definition (.claude/skills/Context/)

• Tag taxonomy (13 dimensions: PARA + Zettelkasten)
• Migration rules for tag normalization

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Key Features

• Telegram as universal capture gateway - voice, photo, documents
• Whisper transcription for voice memos
• Vision AI for photo analysis
• Semantic search via embeddings (SQLite)
• Daily sweep practice for inbox triage
• Two-phase retrieval: search → load

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Dependencies

• kai-core (for skill routing)
• Bun runtime
• OpenAI API (embeddings, Whisper, Vision)
• Telegram Bot API

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Required Configuration

# Add to ~/.claude/.env
TELEGRAM_BOT_TOKEN=...
TELEGRAM_CHANNEL_ID=...
OBSIDIAN_VAULT_PATH=...
OPENAI_API_KEY=...

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Test Plan

• [x] Unit tests pass (pai-tooling/ctx-test)
• [x] CLI tests pass (pai-tooling/ingest-test)
• [x] Fresh install tested on Kai baseline
• [ ] Reviewer tests with own config

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Related

• Closes #147 (Knowledge Transformation Stack)
• Life OS Vision Discussion