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* feat(web): pick prompt templates (not design systems) for image/video projects
The New Project panel now shows the curated prompt-template gallery in the
image and video tabs instead of the Design System picker. Design systems
only make sense for prototypes, slide decks, templates, and the freeform
"other" canvas — they don't map onto image/video generation.
The picked template's body is editable in-line ("optimize" affordance) and
the (possibly tuned) prompt is snapshotted into ProjectMetadata as
`promptTemplate`. The system-prompt composer surfaces it on every turn as
a stylistic + structural reference for the agent — same shape we already
use for the saved-template flow.
Also rename the right-side gallery tabs from "Image prompts" / "Video
prompts" to "Image templates" / "Video templates" across all locales.
Made-with: Cursor
* fix(prompt-templates): address review — escape fences, error UI, empty hint, tests
Apply the actionable feedback from the code review:
- Security: escape triple-backticks in `metadata.promptTemplate.prompt`
before interpolating it into the system prompt's fenced block. A user
who pasted ``` into the editable template body could otherwise close
the fence and inject free-form instructions for the agent. Apply the
same fix in both the contracts composer and the daemon mirror.
- UX: surface fetchPromptTemplate failures via an inline error banner
outside the popover, with a one-click retry button bound to the last
failed pick. Previously the error toast lived inside the popover and
vanished as soon as the popover closed.
- UX: show a subtle hint below the prompt textarea when the body is
empty, so users who clear it on purpose understand the agent will
have no template reference.
- Defense in depth: gate the `**referenceTemplate**:` metadata bullet
on a non-empty prompt body in both composers, so a stale title can
never appear in the system prompt without the body it claims to
reference.
- Tests: add tests/system-prompt-template.test.ts covering the happy
path (image + video), the backtick escape, the truncation cap, the
empty-prompt skip, the non-media kinds, and the missing-source path.
- i18n: add `promptTemplates.retry` and `newproj.promptTemplateBodyEmpty`
across all 9 locales; backfill the prompt-template picker keys for
ja, es-ES, de which landed on main after this branch.
Co-authored-by: Cursor <cursoragent@cursor.com>
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Co-authored-by: Cursor <cursoragent@cursor.com>