niche_render_image_card

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Render a visual onto a post at CP3, or edit an existing image. scope: 'full' (default) renders a new visual and requires `background`. 'recomposite' re-composites new text, color, or size over the retained background at no charge. 'restore' reverts to the prior image from history, at no charge. 'reframe' produces a per-platform aspect variant from the retained background, at no charge. background (required for scope='full'): • 'photo': a generated AI/photographic image with the headline composited over it. ~30 credits, ~30-90s, asynchronous: returns status='rendering_image_card'; poll niche_session_state (image_render.status: rendering, then done with static_urls on the output, or failed with credits refunded). A repeat call while a render is in flight is a no-op. • 'design': the INFOGRAPHIC, a generated editorial graphic that DRAWS the argument (a ranked bar chart, a two-column diagram, a stat, a before/after, a pull-quote), on-brand and legible, with vetted icons. The designer art-directs the treatment from the brand PALETTE (leads light for data, dark for narrative; accent as a spice), and honors a look steer in design_concept ('brighten it up', 'a ranked bar chart', 'navy and gold'). ~30 credits, asynchronous (poll as above). • 'brand_color': a flat brand card with the headline on the brand's solid color with logo and wordmark. No generation, no credits, synchronous. • 'svg': you author the card exactly as SVG markup (pass `svg`); the server rasterizes it to the cell's dimensions. Free, instant, deterministic. The right choice for data, labels, charts, and comparisons (where generated images fail at layout), and the only visual that works from a network-locked sandbox (SVG is text). The SVG owns the whole canvas; use brand colors and fonts from niche_whoami. Static shapes, paths, and text only (no scripts, external references, or foreignObject). `headline` sets the bold header (defaults to the post's card_headline; auto-fits, not truncated). Idempotent: a prior render is replaced. Errors: render_not_ready before CP3; render_not_configured when image generation is unavailable; render_card_unavailable when background='brand_color' but the piece has no card-bearing platform.