Add intent-based routing with Islamic principles

- Base system prompt with Islamic values and principles
- Rules-based intent classifier (fast, no LLM needed)
- Routes to appropriate provider:
  - Islamic/religious → Fanar + Reminder tool
  - Arabic/cultural → Fanar
  - Coding/apps → Anthropic
  - General questions → Redirect to Chat
- Hints suggested tools to LLM based on intent
- Honest about limitations - redirect rather than hallucinate

Co-authored-by: Shelley <[email protected]>

docs: update Phase 3 - video CSS moved

Co-authored-by: Shelley <[email protected]>

gofmt

Use lowercase 'ai' for consistency

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fix post form

Remove duplicate features from README

Removed duplicate feature entries for App and API.

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Add funding configuration for GitHub