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Managed LittleFS file browser, integrity transfers and optional microSD #28
Description
Implement canonical Web file indexing/upload/download with byte integrity, original modification timestamps and protected private settings; shared USB/HTTP maintenance API; optional explicit-pin microSD backend. No production deployment or current-instance mutation authorized in this pass. Track focused source/fixture/build evidence separately from hardware acceptance. WebDAV only if needed; do not advertise incomplete DAV compliance.
Activity
atomicdeploy commentedon Oct 27, 2026
Checkpoint 23fc157 implements managed LittleFS indexing/upload/download via the shared USB/HTTP maintenance API; SHA-256 byte verification, persisted modification dates, explicit replacement and protected private namespace. Optional SD_MMC is build-gated and off by default; its enabled SDK/hardware acceptance remains pending. One Download menu replaces the separate Keep date button, retaining PAX archive export. Compared actual PU850 root and file-download routes and hardened all seven exact public static asset routes with GET/HEAD, content-derived ETags/304, Accept-Encoding/Vary, MIME/nosniff and ACK-safe bounded flash responses. No broad superiority or throughput claim. Passed focused managed-store/Web integrity tests, async HTTP partial-write/HEAD/304/406 tests, compressed-byte/validator checks, Web access/context/identity/workspace contracts, donor/hash gates, canonical full/onboard builds and scoped ESP32-S3 compile (2300263 flash bytes, 138724 static RAM). Isolated browser archive download verified. No production board, installed app or private settings changed. No WebDAV or SD-enabled build/runtime claim. Source and detailed limits: docs/USER-FILES.md. PR #27 contains this checkpoint; CI is asynchronous and no merge or deployment is claimed.