Initial commit: Ajarbot with optimizations

Features:
- Multi-platform bot (Slack, Telegram)
- Memory system with SQLite FTS
- Tool use capabilities (file ops, commands)
- Scheduled tasks system
- Dynamic model switching (/sonnet, /haiku)
- Prompt caching for cost optimization

Optimizations:
- Default to Haiku 4.5 (12x cheaper)
- Reduced context: 3 messages, 2 memory results
- Optimized SOUL.md (48% smaller)
- Automatic caching when using Sonnet (90% savings)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.claude/SKILLS_README.md

@@ -0,0 +1,104 @@
+# Local Skills for Ajarbot
+
+This project uses **local-only skills** for security - no public registries, no external dependencies.
+
+## Available Skills
+
+### `/adapter-dev` - Adapter Development Helper
+
+Helps create, debug, and update messaging platform adapters.
+
+**Usage:**
+```
+/adapter-dev create WhatsApp adapter
+/adapter-dev debug Slack connection issues
+/adapter-dev add file upload support to Telegram
+```
+
+**Location:** `.claude/skills/adapter-dev/`
+
+## Creating Your Own Skills
+
+### 1. Create skill directory
+
+```bash
+mkdir -p .claude/skills/my-skill
+```
+
+### 2. Create SKILL.md
+
+```yaml
+---
+name: my-skill
+description: What this skill does
+user-invocable: true
+disable-model-invocation: true
+allowed-tools: Read, Grep
+context: fork
+---
+
+Instructions for Claude when this skill runs...
+```
+
+### 3. Use the skill
+
+```
+/my-skill
+/my-skill with arguments
+```
+
+## Security Configuration
+
+**Restrict skill permissions** in `.claude/settings.json`:
+
+```json
+{
+  "permissions": {
+    "allow": [
+      "Skill(adapter-dev)",
+      "Skill(my-skill)"
+    ]
+  }
+}
+```
+
+**Per-skill tool restrictions** in SKILL.md frontmatter:
+
+```yaml
+allowed-tools: Read, Grep, Glob
+```
+
+This prevents skills from using `Bash`, `Edit`, `Write`, etc. unless explicitly allowed.
+
+## Why Local Skills?
+
+✅ **No supply chain attacks** - All code is in your repo
+✅ **Version controlled** - Review skills in PRs
+✅ **Team-wide consistency** - Everyone uses same skills
+✅ **Fully auditable** - All code is visible
+✅ **Offline capable** - No registry lookups
+
+## Skill Arguments
+
+Pass arguments to skills:
+
+```
+/adapter-dev create Discord adapter
+```
+
+In SKILL.md, access with:
+- `$ARGUMENTS` - All arguments as string
+- `$0`, `$1`, `$2` - Individual arguments
+
+## Best Practices
+
+1. **Use `disable-model-invocation: true`** for security-sensitive skills
+2. **Limit `allowed-tools`** to only what's needed
+3. **Use `context: fork`** to isolate skill execution
+4. **Document in examples/** directory
+5. **Review all skills before committing**
+
+## Documentation
+
+- [Claude Code Skills Docs](https://code.claude.com/docs/en/skills.md)
+- [Security Guide](https://code.claude.com/docs/en/security.md)