feat: add Resemble Detect + Intelligence tool

[devshahofficial]

Resemble Detect + Intelligence tool

Adds a Resemble tool node + Resemble API credential for Resemble AI
media safety: deepfake detection, media intelligence, and watermarking. Scope is
Detect + Intelligence only (no TTS / voice cloning).

What it adds

• packages/components/nodes/tools/Resemble/ — node exposing a toolkit of
  DynamicStructuredTools to an agent:
  • resemble_detect — deepfake detection (audio/image/video) with toggles for
    intelligence, source tracing, visualize, reverse-search, OOD, zero-retention, model type
  • resemble_intelligence — transcription, translation, speaker info, emotion, misinformation
  • resemble_watermark_detect / resemble_watermark_apply
• packages/components/credentials/ResembleApi.credential.ts — API-key credential.

Implementation

• HTTP logic is in a dependency-free client.ts (global fetch), wrapped by core.ts
  into LangChain tools (@langchain/core/tools + zod/v3).
• Bearer auth; async detection polls to completion; watermark uses Prefer: wait.
• Large inline base64 artifacts (e.g. heatmaps) are stripped from tool output.

Testing

The client was run live against the Resemble API: media intelligence and watermark
detect/apply confirmed green; detection uses the same submit→poll path.

[gemini-code-assist]

Code Review

This pull request introduces a new integration for Resemble AI Detect + Intelligence, including credential configuration, a tool node, an HTTP client, and LangChain tool definitions. A critical issue was identified in the HTTP client (client.ts) where attempting to read the response as text after a failed JSON parsing attempt will throw a TypeError because the response stream is already consumed. It is recommended to read the response as text first and then parse it.

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[gemini-code-assist]

In the Fetch API, once a response body has been read (even if parsing fails), the stream is fully consumed and locked. Attempting to call res.text() in the catch block after res.json() fails will throw a TypeError: body stream already read instead of retrieving the raw text.

To fix this, read the response as text first, and then attempt to parse it as JSON.

    const text = await res.text()
    let data: any
    try {
        data = JSON.parse(text)
    } catch {
        data = { raw: text }
    }