docs(mcp): document list_watches and cancel_watch in MCP integration table (#2110)

[r266-tech]

Summary

Updates the Available MCP Tools table in docs/{en,zh}/guides/06-mcp-integration.md to reflect the two new MCP tools added by #2110 (Watch Management API). Pre-#2110 the table claimed "9 tools" and listed 9 rows. After #2110 the MCP endpoint exposes 11 tools (list_watches + cancel_watch added in openviking/server/mcp_endpoint.py L618 / L655), so the integration guide that clients land on for tool discovery is now stale by 2 rows and a count.

This catch is scoped to the client-facing setup guide only. The deeper API reference (REST routes, CLI subcommands, MCP closure rationale) for the same feature is covered separately in #2123 under docs/{en,zh}/api/02-resources.md. Zero file overlap with #2123.

Why this matters

A user wiring up an MCP client lands on guides/06-mcp-integration.md to discover what tools OpenViking advertises. The current table omits list_watches and cancel_watch, so:

• Agents auto-introspecting the table to plan tool use will miss the watch management surface entirely.
• Operators writing system prompts that enumerate "the X OpenViking MCP tools" will under-count or list stale parameters.
• The literal "9 tools" sentence directly contradicts the 11 tools actually exposed at runtime — a trivially-falsifiable claim that erodes doc trust.

Source of truth

All description and parameter text is paraphrased verbatim from the docstrings on the two @mcp.tool() decorated functions in openviking/server/mcp_endpoint.py (commit fc5ed54):

• list_watches() -> str — no parameters, per-agent visibility, returns table-formatted lines.
• cancel_watch(to_uri: str) -> str — single required URI parameter, must match the watch task's to value.

The trailing note ("Pause / resume / trigger / update intentionally not exposed") is paraphrased from the source-of-truth comment block at mcp_endpoint.py L609-614, which explicitly says MCP exposes the minimum closure and points power users at REST or ov task watch CLI.

Changes

• docs/en/guides/06-mcp-integration.md: 9 tools → 11 tools, insert 2 rows after the add_resource row, append a one-line note pointing watch power-users at REST / CLI for the remaining verbs.
• docs/zh/guides/06-mcp-integration.md: mirrored ZH update with the same byte-mirror structure.

Net: +8 LOC additive, 0 deletions other than the count number.

Test plan

• Both files render — table column alignment preserved, blockquote note renders.
• EN/ZH parity verified — both tables now have 11 rows under the same heading.
• Tool names + parameters verified against openviking/server/mcp_endpoint.py at HEAD (commit fc5ed54).
• No code change — docs-only PR.
• Pre-existing add_resource watch_interval parameter description left untouched; this PR only adds rows + count + closing note.

[github-actions]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

🎫 Ticket compliance analysis ✅ 2123 - Fully compliant Compliant requirements: Update MCP integration guide in en and zh to add new watch tools Update tool count from 9 to 11 Add note about minimum closure in MCP

⏱️ Estimated effort to review: 1 🔵⚪⚪⚪⚪

🏅 Score: 100

🧪 No relevant tests

🔒 No security concerns identified

✅ No TODO sections

🔀 No multiple PR themes

⚡ No major issues detected

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