[onedr0p]

Updates the toolchain to Go 1.27.0 and runs the go fix modernizers. Same rollout as echo#84, gatus-sidecar#177, containers#1777, external-dns-unifi-webhook#313, chaski#129, miroir#437, and ocharted#37.

• Bump go to 1.27.0 in mise and go.mod, lockfile regenerated.
• Bump golangci-lint 2.12.2 → 2.13.0: 2.12.2 is built with go1.26 and refuses a 1.27 language target; 2.13.0 is built with go1.27.0.
• go fix modernizations kept: reflect.TypeOf([]T(nil)) → reflect.TypeFor[[]T]() in the CEL color functions, a clamp loop → the max builtin in duration formatting, and one embedlit flattening in a graph test.
• go fix modernization reverted: dropping the (encoding/json-inert) ,omitempty from struct-typed json tags regenerated config.schema.json with gallery and friends as required — the schema generator reads tag omitempty as optionality, so those tags are load-bearing here. Second commit restores them; config.schema.json is byte-identical to main.
• The fixer's omitzero alternative (a real behavior change) was declined throughout.

Verified: go build, go vet, gofmt -l (clean), golangci-lint run (0 issues), mise run test (all pass with coverage), mise run test-e2e (pass), govulncheck (clean), and git diff origin/main -- config.schema.json is empty.

[greptile-apps]

Greptile Summary

The PR updates the project to Go 1.27.0, aligns golangci-lint with the new language target, regenerates mise lock data, and applies behavior-preserving Go modernizations.

• Updates Go and golangci-lint tool and module versions.
• Replaces reflection and clamp idioms with modern Go equivalents.
• Flattens an embedded struct literal in a graph test.
• Leaves contributor guidance about the Go-version policy stale.

Confidence Score: 4/5

The PR appears safe to merge, with only non-blocking contributor documentation drift to correct.

The toolchain paths consistently use Go 1.27.0, and the source modernizations preserve existing behavior; only the documented Go-version policy is now inaccurate.

Files Needing Attention: go.mod and AGENTS.md

Important Files Changed

Filename	Overview
go.mod	Raises the module language version to Go 1.27.0, but the repository’s contributor guidance still describes a Go 1.26 directive and differing toolchain versions.
.mise/config.toml	Consistently raises Go to 1.27.0 and golangci-lint to 2.13.0 for development and CI paths.
.mise/mise.lock	Regenerates platform URLs, checksums, and release metadata consistently for the two tool upgrades.
internal/kromgo/expr.go	Replaces reflect.TypeOf on typed nil slices with equivalent generic reflect.TypeFor calls.
internal/kromgo/formatting.go	Rewrites the finite duration-day clamp with the max builtin without changing behavior.
internal/kromgo/graph_test.go	Flattens an embedded struct literal while preserving the initialized graph fields and test behavior.

_{Reviews (1): Last reviewed commit: "fix(config): keep omitempty on struct-ty..." | Re-trigger Greptile}

[greptile-apps]

Go version guidance is stale

The module and mise toolchain now both select Go 1.27.0, but AGENTS.md still says the module is pinned to Go 1.26 and is expected to differ from the toolchain. This gives contributors incorrect guidance about the repository's supported Go version and version-pinning policy.