v1.3.0

Changelog

• 8cf97fc Merge pull request #263 from nao1215/dependabot/github_actions/actions/checkout-7
• 330690f Merge pull request #272 from nao1215/fix/issue-264-lazy-asset-deploy
• eb0f9a3 Merge pull request #273 from nao1215/fix/issue-266-import-ambiguous-config
• 82ae659 Merge pull request #274 from nao1215/fix/issue-269-lint-baseline
• 92634be Merge pull request #275 from nao1215/fix/issue-265-completion-install-windows
• 29ed199 Merge pull request #276 from nao1215/fix/issue-267-go-subprocess-timeout
• 6939af2 Merge pull request #277 from nao1215/fix/issue-268-coverage-platform-paths
• 03ad305 Merge pull request #278 from nao1215/refactor/issue-270-shared-operation-engine
• 24c8e1e Merge pull request #279 from nao1215/perf/issue-271-benchmark-and-optimize
• 5783bd0 Merge pull request #280 from nao1215/release/v1.3.0
• 87ddac3 build(deps): bump actions/checkout from 6 to 7
• 6ca11de ci(octocov): stop excluding now-tested platform-dependent files
• cecaef5 ci: enforce golangci-lint as a hard gate instead of warnings
• 71a9c54 docs(cmd): fix grammar and accuracy in subcommand descriptions
• 9d7c7c7 docs(perf): record measured rejection of go list -m batching (no crossover)
• 4432fe0 docs(perf): reduce bold emphasis in performance.md
• d6d63ea feat(cmd): add per-package timeout for go subprocess operations
• 2d7ecde fix(bench): make timing portable (GNU date/gdate) and fail fast on errors
• c126227 fix(cmd): deploy notification icons lazily to avoid startup filesystem writes
• 6d8ae76 fix(cmd): reject negative --timeout values
• 545d113 fix(completion): return explicit error for --install on Windows
• 64b8285 fix(import): fail explicitly when multiple gup.json candidates exist
• 209ddf7 fix: resolve govet inline and stale nolintlint findings
• 4c45632 perf(goutil): skip go-version subprocess for commands that don't need it
• df4641a perf(harness): fail fast on command errors; record measured go list -m batching win
• d6c10ab perf(update): add reproducible real-install harness and record measured findings
• faae4cb refactor(cmd): extract shared package-operation engine
• 897acfb refactor(test): replace repeated string literals with constants for goconst
• 92be424 style: use US spelling 'canceled' for misspell (US locale)
• 19fec11 test(cmd): use shared constants for shell and command names to satisfy goconst
• 219d0ed test(completion): cover make/append error branches to raise coverage
• 79ea909 test(import): use t.Chdir to fix Windows temp dir cleanup race