docs(integration): remove Learning download size checks

.project-docs/10-decisions/adr-005-learning-project-catalog.md

@@ -12,9 +12,9 @@ The integrated Learning module previously implemented course generation, an acco
 
 - Keep the existing authenticated Learning entry and `module_access.learning` policy.
 - Replace the old course model completely with a server-driven project list and README detail page; do not retain a compatibility API or local-course read path.
-- Works Square operations owns project name, cover, summary, tags, version, ordering, publication state, Markdown, ZIP, immutable size, and SHA-256 metadata.
+- Works Square operations owns project name, cover, summary, tags, version, ordering, publication state, Markdown, ZIP, recorded byte count, and SHA-256 metadata.
 - Publish-time processing removes raw Markdown HTML and validates image references as credential-free, default-port HTTPS URLs whose current DNS answers are public. It preserves those URLs instead of downloading, decoding, transcoding, or mirroring image bytes. The Learning detail Renderer opts only Markdown image nodes into the guarded direct-HTTPS image path; covers and historical release media keep their existing controlled-media handling.
-- Electron Main owns Works credentials, the native save dialog, archive request, redirect/origin policy, temporary file, 512 MiB limit, declared size, SHA-256, ZIP signature, and atomic final rename. Renderer receives only bounded project DTOs, media data, and `saved` or `cancelled`.
+- Electron Main owns Works credentials, the native save dialog, archive request, redirect/origin policy, temporary file, SHA-256, ZIP signature, and atomic final rename. It does not reject a download because of `Content-Length`, recorded `archiveBytes`, actual streamed byte count, or a client archive-size ceiling. Renderer receives only bounded project DTOs, media data, and `saved` or `cancelled`.
 - Remove course generation, progress, local library, OpenMAIC player, Agent, ASR, classroom runtime, Learning IPC channels, player packaging resources, and their tests.
 - Do not automatically delete historical downloaded course data. The new client never reads or migrates it.
 
@@ -23,6 +23,7 @@ The integrated Learning module previously implemented course generation, an acco
 - The desktop client and package are substantially smaller and no longer depend on a production Stage player artifact.
 - The external Works Square operations/admin/API contract must be implemented and deployed before the new client can provide real catalog data.
 - Remote README images depend on the third-party origin and Electron's supported image formats. Each image failure remains local to that image, while availability and requester network information are visible to the image origin.
+- Removing client download-size checks avoids rejecting otherwise valid streams with missing or inaccurate size metadata, but also removes client-side protection against an archive consuming excessive disk space. Works Square may retain an independent operations upload/storage limit.
 - A future historical-data cleanup must be an explicit, user-controlled maintenance feature.
 
 ## Supersedes
@@ -37,6 +38,8 @@ The integrated Learning module previously implemented course generation, an acco
 - Integration merge: `d967b0f`
 - Direct-image server source: `65ea070`
 - Direct-image client source: `9956739`
+- No-size-validation client source: `8509084`
+- No-size-validation integration merge: `0c1a360`
 
 ## Related
 

.project-docs/10-decisions/decision-index.md

@@ -8,7 +8,7 @@
 | ADR-002 | Robot V1 采用 Main 门控的引导式热点配网并衔接现有六位 Binding | Accepted / implemented, default on | 2026-08-16 | Robot Renderer、Host API、Electron Main、现有固件热点入口 | `adr-002-robot-guided-hotspot-binding-v1.md` |
 | ADR-003 | Robot 配网页内扫描并连接 Windows/macOS 热点 | Accepted / implemented with physical release gates pending | 2026-08-16 | Robot Renderer、Host API、Electron Main、Windows WLAN、macOS CoreWLAN/CoreLocation | `adr-003-robot-in-app-hotspot-connection.md` |
 | ADR-004 | Works Square 统一拥有桌面认证生命周期边界 | Accepted / implemented | 2026-08-19 | Renderer、Host API、Electron Main、Works Square auth facade | `adr-004-square-auth-lifecycle-boundary.md` |
-| ADR-005 | Learning 采用运营精选项目目录、直接渲染经校验的 HTTPS README 图片并退役课程运行时 | Accepted / implemented, amended 2026-08-20 | 2026-08-20 | Learning Renderer、Host API、Electron Main、Works Square operations/API | `adr-005-learning-project-catalog.md` |
+| ADR-005 | Learning 采用运营精选项目目录、直接渲染经校验的 HTTPS README 图片、下载不做大小校验并退役课程运行时 | Accepted / implemented, amended 2026-08-20 | 2026-08-20 | Learning Renderer、Host API、Electron Main、Works Square operations/API | `adr-005-learning-project-catalog.md` |
 
 ## Superseded Decisions