FEAT: Converter Panel for GUI!

[jbolor21]

Description

Adding converter panels to the GUI interface! This PR only lets you run ONE converter per turn per type of media (ie you can do an image + text conversion in same turn but not two text conversions in one turn)

• Created converter panel where you can select converter
• Each converter shows a description of the converter & its parameters (note only simple parameters are editable with UI)
• Visual badges for see which converters use an LLM - these LLMs will NOT automatically render a preview but will if you click "preview". The rest will auto show the preview!
• Converter panel uses tabs to let you select which modality you want converter on and filters list based on your input type

Tests and Documentation

• Manual testing with the UI
• Frontend unit tests pass (npx jest) & added new e2e tests for new functionality
• Added unit tests & ensured all unit tests pass

Images:
(new button is shown):

(new panel)

(panel dropdown)

(once you've selected converter)

(tabs for different modalities of converters - you can have 1 per mode per turn)

[Copilot]

Pull request overview

Adds a new “Converter Panel” to the PyRIT GUI so users can discover prompt converters, configure basic parameters, preview outputs, and apply one converter per modality per turn, with supporting backend endpoints and test coverage.

Changes:

• Backend: added a converter “catalog” API (types + supported IO + simple parameter schema) and enhanced preview to support non-text data types.
• Frontend: implemented the ConverterPanel UI (tabs by modality, parameter form, preview + “use converted value”) and integrated it into ChatWindow/ChatInputArea send flow.
• Tests: added/updated unit tests (backend + frontend) and introduced Playwright e2e coverage for converter workflows.

Reviewed changes

Copilot reviewed 22 out of 23 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
tests/unit/backend/test_converter_service.py	Adds unit tests for the new converter catalog service method and updates preview-chain expectation.
tests/unit/backend/test_api_routes.py	Adds route-level test for /api/converters/catalog.
pyrit/backend/services/converter_service.py	Implements converter catalog generation (doc/params introspection), param coercion, and enhanced preview handling for media types.
pyrit/backend/services/attack_service.py	Ensures atomic_attack_identifier stays consistent when per-message converters update the attack identifier.
pyrit/backend/routes/converters.py	Adds a new GET /converters/catalog endpoint.
pyrit/backend/models/converters.py	Introduces DTOs for catalog entries and parameter schemas.
frontend/src/types/index.ts	Adds TS types for converter catalog and converter instances.
frontend/src/services/api.ts	Adds convertersApi client functions (catalog/create/preview/etc.).
frontend/src/components/Config/TargetConfig.test.tsx	Adds dialog cancel/close test coverage.
frontend/src/components/Config/CreateTargetDialog.test.tsx	Makes target creation test input method consistent.
frontend/src/components/Chat/converterTypes.ts	Adds shared mapping/types for piece-type ↔ data-type and conversion payloads.
frontend/src/components/Chat/ConverterPanel.tsx	New converter panel UI: selection, param editing, preview, auto-preview behavior, and “use converted value”.
frontend/src/components/Chat/ConverterPanel.test.tsx	Unit tests for converter panel UI behaviors (selection, params, preview, resizing, etc.).
frontend/src/components/Chat/ConverterPanel.styles.ts	Styles for the converter panel per repo convention.
frontend/src/components/Chat/ChatWindow.tsx	Integrates converter panel state + applies conversions into outgoing message requests.
frontend/src/components/Chat/ChatWindow.test.tsx	Adds integration tests covering converter panel toggling and preview flow in chat.
frontend/src/components/Chat/ChatInputArea.tsx	Adds converter toggle button, “converted” UI rows, and attachment→base64 propagation to converter panel.
frontend/src/components/Chat/ChatInputArea.test.tsx	Expands unit tests for converter toggle, converted UI, and attachment conversion indicators.
frontend/src/components/Chat/ChatInputArea.styles.ts	Layout updates for converted/original display and attachment rows.
frontend/package.json	Adds react-async-hook and bumps frontend version.
frontend/package-lock.json	Lockfile updates for new dependency/version bump.
frontend/e2e/converters.spec.ts	New Playwright e2e suite covering converter panel flows.
frontend/e2e/chat.spec.ts	Improves mocked message GET handling and skips a flaky/overbroad video role query test.

Files not reviewed (1)

• frontend/package-lock.json: Language not supported

[hannahwestra25]

awesome job!! 🙌