chore: gut agent

[grantdfoster]

• guts the agent from the client in favor of implementing directly into go trader

[Copilot]

Pull Request Overview

This PR refactors the agent system from topic-based sentiment analysis to asset-based sentiment tracking. The changes replace a string-based sentiment model with a numeric scoring system (1-100) and expand tool capabilities to include web scraping alongside Twitter search.

Key changes:

• Refactored data model from TopicSummary to AssetSummary with numeric sentiment scoring (1-100 scale)
• Added WebSearch tool for scraping cryptocurrency market websites
• Updated TwitterSearch tool interface from Run() to Execute() method and improved error handling
• Introduced configurable query options pattern for flexible agent behavior
• Updated dependencies including cogito upgrade from v0.3.3 to v0.5.0

Reviewed Changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
types/agent.go	Changed data model from TopicSummary to AssetSummary with numeric sentiment
agent/agent.go	Added QueryOptions pattern, switched from ContentReview to ExecuteTools, improved extraction error handling
agent/twitter.go	Renamed Run() to Execute(), added timeout error handling, updated default date range
agent/web.go	New file implementing WebSearch tool for website scraping
agent/errors.go	New utility for detecting timeout errors
agent/assets.go	New file defining default crypto assets list
agent/websites.go	New file defining default market data websites
agent/kols.go	New file defining Key Opinion Leaders list for Twitter monitoring
agent/agent_test.go	Updated test to verify asset sentiment analysis with new query pattern
go.mod	Updated cogito dependency and added local replace directive
go.sum	Updated dependency checksums for various packages

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