feat: add direct agent edits and SDT content-control toolsFeature/agent direct edit sdt

[xy200303]

Summary

• Add direct agent edit tools: insert_text and replace_text
• Add Word content-control / SDT tools: read_content_controls and set_content_control
• Wire direct edits through the shared agent bridge plus React/Vue editor refs
• Update agent-chat-demo prompt/env handling so normal edits apply directly, while suggest_change is reserved for explicit review/tracked-change workflows
• Refresh API snapshots and parity contracts

Verification

• Full workspace typecheck passed via commit hooks
• API snapshot check passed
• Editor contract and parity contract checks passed
• Agent tool/MCP/Word compatibility tests passed
• examples/agent-chat-demo build passed

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Project	Deployment	Actions	Updated (UTC)
docx-editor	Ready	Preview, Comment	Jun 2, 2026 7:02am