feat: add initial .ai directory/files to house composable versionable AI rules

Author: ashleyhindle

.ai/boost/core.md

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+# Searching documentation
+
+Boost comes with a powerful `search-docs` tool you should use before any other approaches. This tool automatically passes a list of installed packages and their versions to the remote Boost API, so it returns only version-specific documentation specific for the user's circumstance.
+
+'search-docs' tool is perfect for all Laravel related packages. Laravel, inertia, pest, livewire, nova, nightwatch, and more.
+
+You must use this tool to search for Laravel-ecosystem docs before falling back to other approaches.
+
+## Available Search Syntax
+You can and should pass multiple queries at once, the most relevant will be returned first. Start specific, broaden after.
+
+1. Simple Word Searches with auto-stemming - query=authentication - finds 'authenticate' and 'auth'
+2. Multiple Words (AND Logic) - query=rate limit - finds knowledge containing both "queue" AND "worker"
+3. Quoted Phrases (Exact Position) - query="infinite scroll - Words must be adjacent in that order
+4. Mixed Queries - query=middleware "rate limit" - "middleware" AND exact phrase "rate limit"
+5. Multiple Queries - queries=["authentication", "middleware"] - ANY of these terms
+
+# URLs
+
+- Whenever you create a URL use the `get-absolute-url` tool to ensure you're using the correct scheme, domain/IP, and port.

.ai/herd/core.md

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+- This site is hosted with Laravel Herd. You MUST NOT ever run `artisan serve`. The site is always available and you can
+  get the correct URL for it by using the `get-absolute-url` tool.