docs: Add changelog for new dashboard & widgets APIs (incl. CLI & MCP server)

[LysanderKie]

Summary

Adds a changelog entry announcing the new dashboard & widget management surface:

• New /api/public/unstable endpoints for dashboards, dashboard placements, and dashboard widgets
• Corresponding support in the Langfuse CLI and new tools in the Langfuse MCP server
• Availability of the same operations via the Langfuse Assistant in the UI

Also adds Lysander Kiesel to data/authors.json and the team table (first changelog entry by this author).

🤖 Generated with Claude Code

Greptile Summary

This PR adds a changelog entry announcing the new dashboard and widget management API surface under /api/public/unstable, along with the corresponding Langfuse CLI and MCP server tool coverage. It also registers Lysander Kiesel as a new author in data/authors.json and adds him to the team members table.

• Changelog (2026-07-17-dashboard-and-widget-operations-in-api.mdx): Documents three new endpoint groups (/dashboards, /dashboards/{dashboardId}/placements, /dashboard-widgets), 13 new MCP tools, and the Langfuse Assistant integration, with an unstable-API callout and three "Get started" cards linking to existing docs.
• Author data: Adds lysanderkiesel to data/authors.json with firstName: "Lysander" (matching the changelog frontmatter author: Lysander that resolves via findAuthor's firstName lookup path), and adds a row to components-mdx/team-members.mdx.

Confidence Score: 5/5

Documentation-only PR adding a changelog entry, author profile, and team table row — no runtime code paths are touched.

All internal links resolve to real doc files, the author: Lysander frontmatter correctly matches the new author's firstName field, the globally registered MDX components (Callout, Cards, Card, Table) are used without needing explicit imports — consistent with every other recent changelog entry — and the .jpeg image extension matches the uploaded file and patterns already in the codebase.

No files require special attention.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    User([User / Agent])

    subgraph Access["Access Methods"]
        API["REST API\n/api/public/unstable"]
        CLI["Langfuse CLI\nauto-generated from spec"]
        MCP["Langfuse MCP Server\n13 new tools"]
        Assistant["Langfuse Assistant\nin-UI"]
    end

    subgraph Operations["Dashboard Operations"]
        D["Dashboards\nCRUD + filters + layout"]
        P["Placements\nadd / move / resize tiles"]
        W["Widgets\nreusable widget definitions"]
    end

    User --> API & CLI & MCP & Assistant
    API --> D & P & W
    CLI --> D & P & W
    MCP --> D & P & W
    Assistant --> D & P & W

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%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%%
flowchart TD
    User([User / Agent])

    subgraph Access["Access Methods"]
        API["REST API\n/api/public/unstable"]
        CLI["Langfuse CLI\nauto-generated from spec"]
        MCP["Langfuse MCP Server\n13 new tools"]
        Assistant["Langfuse Assistant\nin-UI"]
    end

    subgraph Operations["Dashboard Operations"]
        D["Dashboards\nCRUD + filters + layout"]
        P["Placements\nadd / move / resize tiles"]
        W["Widgets\nreusable widget definitions"]
    end

    User --> API & CLI & MCP & Assistant
    API --> D & P & W
    CLI --> D & P & W
    MCP --> D & P & W
    Assistant --> D & P & W

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_{Reviews (1): Last reviewed commit: "Merge branch 'main' into docs/dashboard-..." | Re-trigger Greptile}

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Project	Deployment	Actions	Updated (UTC)
langfuse-docs	Ready	Preview, Comment	Jul 20, 2026 9:23am

[github-actions]

@claude review

[claude]

Looks good — straightforward changelog entry and author addition, with one minor phrasing nit already flagged inline.

Extended reasoning...

Overview

This PR adds a new changelog entry announcing dashboard/widget management via the public API, CLI, and MCP server, plus adds a new author (Lysander Kiesel) to data/authors.json and the team table in components-mdx/team-members.mdx, along with their profile image.

Security risks

None. This is pure documentation/content — no code paths, auth, or data handling are touched.

Level of scrutiny

Low. This is a routine content addition (new changelog post + team roster entry) following well-established patterns in the repo. No build config, routing, or logic changes are involved.

Other factors

Verified the internal links referenced in the changelog (/docs/langfuse-assistant, /docs/api-and-data-platform/features/cli, /docs/api-and-data-platform/features/mcp-server, /docs/metrics/features/custom-dashboards) all resolve to existing pages, and that Callout/Cards are used without explicit import consistent with other changelog entries (globally available MDX components). The only issue found was a minor grammar nit in the intro sentence, already posted as an inline comment — not significant enough to block approval.