feat(tools): optionality + refactor

[afjcjsbx]

📝 Description

This PR addresses several architectural improvements within the tools module.

Key changes include:

1. One Tool = One File Structure: Split monolithic files (like edit.go or web.go) into separate files for each tool to ensure a clear and maintainable directory structure.
2. Tools Module Decoupling: Moved tool initialization logic out of the agent's core (pkg/agent/instance.go and pkg/agent/loop.go). Introduced pkg/tools/init.go with SetupWorkspaceTools and SetupSharedTools to handle tool registration independently.
3. Granular Tool Configuration: Added new configuration flags in config.json (ToolsConfig) to selectively enable/disable specific tool groups (core, filesystem, exec, skills, web, etc.).

🗣️ Type of Change

• 🐞 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• 📖 Documentation update
• ⚡ Code refactoring (no functional changes, no api changes)

🤖 AI Code Generation

• 🤖 Fully AI-generated (100% AI, 0% Human)
• 🛠️ Mostly AI-generated (AI draft, Human verified/modified)
• 👨‍💻 Mostly Human-written (Human lead, AI assisted or none)

🔗 Related Issue

Resolves: #634

📚 Technical Context (Skip for Docs)

• Reference URL: N/A
• Reasoning: - Separation of Concerns: The agent no longer needs to know how tools are instantiated.
• Token Optimization & Security: By allowing users to disable infrequently used tools (like hardware/I2C or specific filesystem operations), we significantly reduce the size of the System Prompt injected into the LLM context window, saving tokens and resource saving by not loading into memory unnecessary tools

🧪 Test Environment

🧪 Test Environment

• Hardware: Apple Silicon (Mac M-series)
• OS: macOS
• Model/Provider: Generic (Infrastructure change)
• Channels: Telegram / All

📸 Evidence (Optional)

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☑️ Checklist

• My code/docs follow the style of this project.
• I have performed a self-review of my own changes.
• I have updated the documentation accordingly.