Remove the baked-in gradient from the target images (DES-274)

[cesartevisual]

Description

Target images shipped with a gradient baked into the raster, so adding a new target meant recreating that gradient inside the image before uploading it. Every hero image is now a clean 800×600 transparent PNG — drop in a cutout and it matches. If we want the gradient back, it belongs in CSS on the hero component, applied once, instead of in every asset.

Also improved a couple of images along the way:

• Jetson AGX Orin and Orin NX were still gradient-baked JPEGs, and their solutions heroes were wrong — AGX Orin pointed at a file that doesn't exist, Orin NX reused the Orin Nano photo. Both now use the new transparent art.
• Removed the superseded .jpeg files and two unreferenced NVIDIA images.

While confirming the images resolved, fixed the remaining dangling references — these don't fail the build, they just render broken:

• Three AGX Orin use-case images were never committed; repointed at existing art.
• Four ogImage paths had drifted: iq9.jpeg → iq-9.jpeg, nxp-imx8mp.jpg → nxp-imx8p.jpg, and both Raspberry Pi pages still referenced raspberry-pi.jpg, deleted back in 1f70b8b3.

Every /img/ reference across docs-hardware and the solutions data now resolves.

Review follow-ups

• Grinn AstraSOM 1680 was missed by the first pass. It still had the baked-in glow, and its trim box was the 1033×1033 halo rather than the module. Regenerated as a clean 800×600 cutout.
• Two canvases were left un-normalized, so those heroes rendered at a different scale under object-fit: contain: the HummingBoard RZ/V2N kept its 1080×1080 canvas after the glow came off, and the STM32MP257F-DK was a 1000×1000 cutout the first pass never touched. Both are 800×600 now — all 19 hero images are uniform.
• The FRDM i.MX 93 pages rendered the wrong product. Both the hardware hero and the solutions hero pointed at NXP-FRDM-MCXN947.png, an MCX N947 MCU board, while the correct i.MX 93 art sat unreferenced. Repointed both; NXP-FRDM-MCXN947.png is kept, since it's correctly-named art for a real board rather than a superseded duplicate.
• Five solution pages had a canonicalUrl pointing at a URL the site doesn't serve — /solutions/raspberry-pi/raspberry-pi, /solutions/onlogic, /solutions/qualcomm/iq9, /solutions/seeed. None is a route and none has a redirect, so each was a canonical tag aimed at a 404. Copilot flagged two; the audit found three more. All 13 solution routes now match their own canonical, verified in the built HTML. Not fixed here: /solutions/stmicroelectronics/stm32mp157d-dk renders stm32mp257f-dk.ts, so the route names the wrong product — that needs a URL rename plus a redirect.
• Copilot's use-case image flag: the image was right and its filename was wrong — factory-quality-inspection.png is a road scene under object detection, so it fits "Autonomous Vehicles". Renamed to road-scene-perception.png. The alt half was a real bug: UseCases rendered alt={useCase.title} and never declared imageAlt, so all 36 imageAlt values in the solutions data were dead. It now renders alt={useCase.imageAlt ?? useCase.title}.

Checklist

• I have read the Contributing guidelines.
• I have the right to submit this contribution, and I agree it is licensed to
  Peridio, Inc. as described in the Contributing guidelines.
• This contribution contains no third-party personal data and nothing
  defamatory, infringing, or unlawful.
• I ran the project checks (bash scripts/checks.sh) and they pass.

[Copilot]

Pull request overview

This PR updates the docs site’s solution metadata and hardware pages to stop relying on gradient-baked / outdated raster assets, and to ensure all referenced /img/... paths resolve to the current cleaned image set.

Changes:

• Updated multiple ogImage paths in solution data to point at existing, correctly named assets.
• Updated NVIDIA Jetson solution + hardware pages to use the new transparent .png hero images (instead of legacy .jpeg/incorrect files).
• Repointed missing NVIDIA AGX Orin use-case image references to existing /img/use-cases/... assets.

Reviewed changes

Copilot reviewed 8 out of 32 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/src/data/solutions/raspberry-pi/raspberry-pi-5.ts	Updates ogImage to the correct Raspberry Pi 5 asset.
src/src/data/solutions/raspberry-pi/raspberry-pi-4-model-b.ts	Updates ogImage to a valid Raspberry Pi 4 image path.
src/src/data/solutions/qualcomm/iq9.ts	Fixes ogImage filename drift (iq9.jpeg → iq-9.jpeg).
src/src/data/solutions/nxp/imx8mp.ts	Fixes ogImage filename drift (nxp-imx8mp.jpg → nxp-imx8p.jpg).
src/src/data/solutions/nvidia/jetson-orin-nx.ts	Updates hero image path/alt text to the new Orin NX art.
src/src/data/solutions/nvidia/jetson-agx-orin.ts	Updates OG/hero images and repoints missing use-case images to existing assets.
src/docs-hardware/nvidia/jetson-orin-nx/index.mdx	Switches hardware hero image from .jpeg to .png.
src/docs-hardware/nvidia/jetson-agx-orin/index.mdx	Switches hardware hero image from .jpeg to .png.

Suppressed comments (1)

src/src/data/solutions/nvidia/jetson-agx-orin.ts:86

• This placeholder image (ml-inference-server.png) doesn’t match the “Surgical Robotics” use case, and UseCases uses the title as the <img> alt text. Consider switching to a closer-fit placeholder so the title-based alt isn’t misleading.

      image: '/img/use-cases/ml-inference-server.png',

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[Copilot]

Pull request overview

Copilot reviewed 9 out of 34 changed files in this pull request and generated no new comments.

[Copilot]

Pull request overview

Copilot reviewed 11 out of 38 changed files in this pull request and generated 2 comments.

[Copilot]

Pull request overview

Copilot reviewed 13 out of 40 changed files in this pull request and generated no new comments.