docs(readme): clarify official source and add poster

Explain how to add the official source and develop, package, and install Curios.
Use the selected blue-and-white illustration as the README hero and preserve the poster variants and prompts for reference.

Validation: documentation links and anchors checked; CLI static starter creation, check, and pack passed; image dimensions and asset links verified.

design/posters/prompts-v2.json

@@ -0,0 +1,41 @@
+{
+  "mode": "oil-visual / Mode A — 图像主导",
+  "generator": "built-in image_gen",
+  "date": "2026-09-14",
+  "status": "review",
+  "constraint": "只保留小号 Trove Curios 署名，以图片示意为主",
+  "variants": [
+    {
+      "id": "a-swiss",
+      "name": "A · 蓝白极简",
+      "filename": "a-swiss-v2.png",
+      "brief": "蓝色圆形与留白，突出工具从源来到桌面的关系。",
+      "reference": "/Users/render/.codex/generated_images/01a08f10-f0fa-7230-beca-b430ef4388d3/exec-1c54c909-5bb7-4318-b532-2b4bcc2ce972.png",
+      "prompt": "Use case: precise-object-edit / ads-marketing. Edit the attached poster into a predominantly pictorial, minimal-text poster. The user explicitly requests images to carry the meaning instead of a large amount of lettering.\nIMPORTANT: Remove every existing heading, Chinese label, slogan, URL, and explanatory text. The ONLY readable text allowed anywhere is exactly \"Trove Curios\", appearing ONCE as a modest signature at the lower left, about 3 percent of canvas height, never a headline. Do not include any other letters, words or numbers. Recognizable simple pictograms such as a Git branch, a folder, a phone, a monitor, arrows and code brackets are allowed.\nThe source-to-tools-to-desktop relation must be conveyed solely by the illustrated objects. The project is the official Trove software source; its two actual example tools are file transfer and phone mirroring. Keep those two distinct pictograms and the small code-file object for development. Do not invent a mascot, a pictorial brand logo, extra features, or extra interface labels.\nKeep the warm white background, bold cobalt circle, crisp black editorial ink and restrained halftone. Recompose the archive box and code-file pictogram on the left, the two app pictograms through the central cobalt circle, and the laptop on the right. Expand and rebalance this graphic so it is the entire primary composition, not an illustration sitting beneath a headline. One elegant visual path, generous white margins, visually refined and quiet.\nMaintain the original 1536 by 1024 landscape canvas, the distinctive art medium and palette of this reference, professional ink illustration quality, crisp object silhouettes and clear hierarchy. Spend at least 80 percent of the visual attention on the illustration. Do not leave giant empty text placeholders. No photorealism, no glossy 3D, no new watermarks, no dense prose, no badges with words, no extra text. All text must be generated as part of the image, with no later overlay required."
+    },
+    {
+      "id": "b-comic",
+      "name": "B · 漫画分镜",
+      "filename": "b-comic-v2.png",
+      "brief": "用三段漫画动作呈现源、安装过程与桌面工具。",
+      "reference": "/Users/render/.codex/generated_images/01a08f10-f0fa-7230-beca-b430ef4388d3/exec-32105096-3578-4d7a-ab09-0a19983f2901.png",
+      "prompt": "Use case: precise-object-edit / ads-marketing. Edit the attached poster into a predominantly pictorial, minimal-text poster. The user explicitly requests images to carry the meaning instead of a large amount of lettering.\nIMPORTANT: Remove every existing heading, Chinese label, slogan, URL, and explanatory text. The ONLY readable text allowed anywhere is exactly \"Trove Curios\", appearing ONCE as a modest signature at the lower left, about 3 percent of canvas height, never a headline. Do not include any other letters, words or numbers. Recognizable simple pictograms such as a Git branch, a folder, a phone, a monitor, arrows and code brackets are allowed.\nThe source-to-tools-to-desktop relation must be conveyed solely by the illustrated objects. The project is the official Trove software source; its two actual example tools are file transfer and phone mirroring. Keep those two distinct pictograms and the small code-file object for development. Do not invent a mascot, a pictorial brand logo, extra features, or extra interface labels.\nKeep the vermilion orange and black manga style, varied contour weights, circular halftone and exactly three connected angled scenes. Expand the triptych almost to the full canvas height: left open archive, middle two application tiles moving along one swoosh, right laptop with the installed tool pictograms. Remove the giant header and dark URL strip altogether, replacing their space by the enlarged artwork and natural breathing room. No word balloons or comic sound effects.\nMaintain the original 1536 by 1024 landscape canvas, the distinctive art medium and palette of this reference, professional ink illustration quality, crisp object silhouettes and clear hierarchy. Spend at least 80 percent of the visual attention on the illustration. Do not leave giant empty text placeholders. No photorealism, no glossy 3D, no new watermarks, no dense prose, no badges with words, no extra text. All text must be generated as part of the image, with no later overlay required."
+    },
+    {
+      "id": "c-blueprint",
+      "name": "C · 工程蓝图",
+      "filename": "c-blueprint-v2.png",
+      "brief": "深蓝底色与青色连线，突出软件源和开发入口。",
+      "reference": "/Users/render/.codex/generated_images/01a08f10-f0fa-7230-beca-b430ef4388d3/exec-32385acc-716e-4745-b39b-e99d19e6ee60.png",
+      "prompt": "Use case: precise-object-edit / ads-marketing. Edit the attached poster into a predominantly pictorial, minimal-text poster. The user explicitly requests images to carry the meaning instead of a large amount of lettering.\nIMPORTANT: Remove every existing heading, Chinese label, slogan, URL, and explanatory text. The ONLY readable text allowed anywhere is exactly \"Trove Curios\", appearing ONCE as a modest signature at the lower left, about 3 percent of canvas height, never a headline. Do not include any other letters, words or numbers. Recognizable simple pictograms such as a Git branch, a folder, a phone, a monitor, arrows and code brackets are allowed.\nThe source-to-tools-to-desktop relation must be conveyed solely by the illustrated objects. The project is the official Trove software source; its two actual example tools are file transfer and phone mirroring. Keep those two distinct pictograms and the small code-file object for development. Do not invent a mascot, a pictorial brand logo, extra features, or extra interface labels.\nKeep the midnight navy background, fine sparse drafting grid, ivory diagram linework, cyan routed connections and restrained halftone. Enlarge and center the whole graphical schematic: source archive on left, two tool pictograms in center, laptop on right, code document as a small branch below. No heading region, no title bar, no footer rule, no dimensions or technical annotation. Let the clean technical drawing occupy 80 percent of the composition.\nMaintain the original 1536 by 1024 landscape canvas, the distinctive art medium and palette of this reference, professional ink illustration quality, crisp object silhouettes and clear hierarchy. Spend at least 80 percent of the visual attention on the illustration. Do not leave giant empty text placeholders. No photorealism, no glossy 3D, no new watermarks, no dense prose, no badges with words, no extra text. All text must be generated as part of the image, with no later overlay required."
+    },
+    {
+      "id": "d-risograph",
+      "name": "D · 复古孔版",
+      "filename": "d-risograph-v2.png",
+      "brief": "用双色印刷的桌面百宝箱表达收集与发现工具的乐趣。",
+      "reference": "/Users/render/.codex/generated_images/01a08f10-f0fa-7230-beca-b430ef4388d3/exec-33a11719-39a0-418d-b2d6-5a2beddd444d.png",
+      "prompt": "Use case: precise-object-edit / ads-marketing. Edit the attached poster into a predominantly pictorial, minimal-text poster. The user explicitly requests images to carry the meaning instead of a large amount of lettering.\nIMPORTANT: Remove every existing heading, Chinese label, slogan, URL, and explanatory text. The ONLY readable text allowed anywhere is exactly \"Trove Curios\", appearing ONCE as a modest signature at the lower left, about 3 percent of canvas height, never a headline. Do not include any other letters, words or numbers. Recognizable simple pictograms such as a Git branch, a folder, a phone, a monitor, arrows and code brackets are allowed.\nThe source-to-tools-to-desktop relation must be conveyed solely by the illustrated objects. The project is the official Trove software source; its two actual example tools are file transfer and phone mirroring. Keep those two distinct pictograms and the small code-file object for development. Do not invent a mascot, a pictorial brand logo, extra features, or extra interface labels.\nKeep the cream paper, brick red and muted teal inks, confident woodcut-like comic outlines and restrained print texture. Enlarge the open tool archive, code page, floating app pictograms and laptop into a single beautifully balanced illustration filling the poster. Remove the typography band at the top and the URL footer. Replace the written label on the archive with a simple small pictorial Git-branch emblem. Preserve the warm tactile craftsmanship while simplifying incidental decoration.\nMaintain the original 1536 by 1024 landscape canvas, the distinctive art medium and palette of this reference, professional ink illustration quality, crisp object silhouettes and clear hierarchy. Spend at least 80 percent of the visual attention on the illustration. Do not leave giant empty text placeholders. No photorealism, no glossy 3D, no new watermarks, no dense prose, no badges with words, no extra text. All text must be generated as part of the image, with no later overlay required."
+    }
+  ]
+}