Fix xovi checksum validation and harden extension lifecycle#8
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Root cause: QMD files lack .gitattributes protection, so Windows core.autocrlf=true converts LF→CRLF, breaking all SHA-512 checksums. Fixes: - Add .gitattributes to enforce LF line endings for QMD and shell files - Normalize line endings before hashing (defense-in-depth) in manifest generation, validation script, and runtime verification - Add runtime checksum verification before deploying to device - Check vellum reenable status before xovi deploy (was only on install) - Clean orphaned QMD files before vellum removal - Persist rebuild_hashtable warnings in done event (was ephemeral) - Show supported firmware version range in UI when firmware unsupported - Add structured error details and operation names to ErrorDetails - Parse vellum errors into actionable user hints (6 categories) Tests: 13 new integration tests (full xovi lifecycle via mock SSH), 12 unit tests (normalizeLF, sha512Normalized, verifyQmdChecksum), 9 tests for parseVellumErrorHint. All 1027 tests passing. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…um troubleshooting - Add "Updating to a new version" section in quickstart with clear git pull + docker compose up workflow - Add one-liner upgrade note to README Quick Start - Fix cd path typo (remarkable_templates → RemarkableCustomTemplates) in both README and quickstart - Add checksum validation troubleshooting entry in xovi docs pointing to PR #8 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
.gitattributesto enforce LF line endings on QMD files — Windowscore.autocrlf=truewas converting LF→CRLF, breaking all SHA-512 checksums during xovi validationTest plan
normalizeLF,sha512Normalized,verifyQmdChecksum(including tamper detection and full manifest sweep)parseVellumErrorHint(checksum, reenable, network, missing package, disk space, integrity, generic)🤖 Generated with Claude Code