Clean up README: remove duplicate sections and placeholders

[Copilot]

The README contained three duplicate sets of About/Installation/Usage/Running Tests sections with placeholder text that needed to be consolidated and filled with actual content.

Changes

• Removed duplicate sections: Eliminated 3x duplicate About, Installation, Usage, and Running Tests blocks (81 lines removed)
• Consolidated into Development Setup: Single unified section with Installation, Running Tests, and Example Usage subsections
• Filled placeholders: Replaced [Provide a brief description of your project here.] and similar boilerplate with actual project information
• Enhanced usage examples: Added descriptive comments explaining the Empathy Mint application (EMP token minting via Ache protocol) and ScarCoin Bridge contract (token bridging with ScarIndex oracle)

Result

# Before: placeholder comments
from mythotech-architecture import core
# result = core.some_function()

# After: meaningful examples
from mythotech_architecture import core
# Empathy Mint application - mints EMP tokens when participants 
# validate mutual understanding using the Ache measurement protocol

README reduced from 268 to 187 lines while maintaining all essential information.

Original prompt

summary

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