[Feature and Refactor] Refactor the core-loop and TUI

[wangxingjun778]

LeapFlow Runtime Enhancements

⚙️ Core Runtime & Context Governance

• Adaptive Context Governance: Introduces the ContextGovernanceController to dynamically manage and enforce exploration limits.
• Progressive Context Disclosure: Adds a DisclosurePlanner to progressively reveal tool schemas and memory states as needed, optimizing token usage and focus.
• Unified Action Approval Framework: Implements the ApprovalOrchestrator to coordinate structured approvals (e.g., shell commands, file writes) seamlessly across both in-process and daemon-backed sessions.

💻 TUI & User Experience

• Native Approval UI: Integrated a native ApprovalModal directly into the TUI for smoother, safer interaction loops.
• Robust Session Management: Introduced a reconnectable _DaemonRuntimeBridge to ensure persistent connectivity with background sessions.
• Enhanced Command Queueing: Added comprehensive runtime controls, introducing supporting commands: /cancel, /skip, /pause, /resume, /queue, and /drop.
• Paste Optimization: Added safe paste compaction to handle large clipboard inputs gracefully without disrupting the terminal layout.

🌐 Gateway & Integration Refactoring

• Lightweight Gateway Adapters: Refactored built-in communication channels—including DingTalk, Feishu, Telegram, Webhook, and the core API Server—to utilize dependency-free, lightweight HTTP helpers, significantly reducing external overhead.

🧹 Deprecations & Cleanups

• Shortcut Optimization: Removed user-customizable shortcuts to streamline the input handling engine and improve internal maintainability.

[gemini-code-assist]

Code Review

This pull request introduces adaptive context governance, progressive context disclosure, and a unified action approval framework to the LeapFlow runtime. Key updates include the addition of a DisclosurePlanner to progressively disclose tool schemas and memory, a ContextGovernanceController to manage exploration limits, and an ApprovalOrchestrator to coordinate structured action approvals (such as shell commands and file writes) across both in-process and daemon-backed sessions. The TUI has been significantly enhanced with a native ApprovalModal, a reconnectable _DaemonRuntimeBridge, safe paste compaction, and improved command queueing (supporting /cancel, /skip, /pause, /resume, /queue, and /drop). Additionally, built-in gateway adapters (DingTalk, Feishu, Telegram, Webhook, API Server) were refactored to use lightweight, dependency-free HTTP helpers, and user-customizable shortcuts were removed. I have reviewed the changes and have no feedback to provide.

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