v0.4.0

v0.4.0 — MCP Native Tool Discovery + Account-Bound Proxy

MCP Integration

• Mount /v1/mcp/sse, /v1/mcp/message, /v1/mcp/tools endpoints
• When request has tools, register to MCP registry and inject mcp-gateway plugin
• M365 Copilot discovers tools natively via plugins list — no more large prompt injection
• toolProtocolPrompt simplified: hasPlugins=true returns text as-is

Account-Bound Proxy (One-Account-One-IP)

• AccountToken.BoundProxy field persisted in accounts.json
• Per-proxy chathub.Client cache with dedicated connection pool
• /api/accounts/bind-proxy API endpoint (admin-only)
• Web UI: Proxy column + Bind button in accounts table

Bug Fixes

• Web files embedded into binary — exe works standalone without web/ folder
• MergeTools prevents concurrent request tool registry overwrite
• Stuck tool loop detection: same call 3x or same failure 2x blocks further tool rounds
• Conversation list returns empty instead of error when M365 API structure varies
• bindProxy unbind correctly clears proxyClients cache
• clientForProxy inherits Trace callback from global client