feat(execution-history): color actors by identity

[aryasaatvik]

Summary

Execution history colors actors from a hash of actorId, not actorKind. Machines that all present as service-token (phoenix, agni, blaze, cursor) get distinct, stable hues in the filter rail, runs table, and detail drawer.

Palette

actorTone(run.actorId)

// was actorTone(run.actorKind) → every service token painted violet

FNV-1a of the stable id indexes an 8-slot palette that avoids status (emerald/sky/amber/red) and trigger (violet/cyan/slate). Missing ids stay muted. actorKind remains a drawer suffix, not a hue. Collisions are accepted once cardinality exceeds the palette.

Tests

• bunx --bun vitest run src/react/status.test.ts in @executor-js/plugin-execution-history (determinism, muted fallback, palette membership)
• oxlint --deny-warnings on the five owned files
• Live check on executor.arya.sh needs this commit in the selfhost worktree plus a host deploy — not done here

[greptile-apps]

Greptile Summary

The PR changes execution-history actor coloring from credential-kind-based tones to deterministic identity-based tones.

• Hashes stable actor IDs into an eight-color palette while retaining a muted fallback for missing IDs.
• Applies identity colors consistently to the filter rail, run table, and detail drawer.
• Adds focused tests for fallback behavior, determinism, palette membership, and color distribution.

Confidence Score: 5/5

The PR appears safe to merge, with no concrete correctness, security, build, or repository-rule issues identified.

All execution-history views derive actor colors from the same persisted actorId, missing identities retain the muted presentation, and the new tests follow the package's established test configuration.

Important Files Changed

Filename	Overview
packages/plugins/execution-history/src/react/status.ts	Introduces deterministic FNV-1a actor-ID hashing, an eight-slot actor palette, and a muted missing-ID fallback.
packages/plugins/execution-history/src/react/status.test.ts	Adds package-conventional Effect Vitest coverage for actor-tone determinism, fallback behavior, and palette selection.
packages/plugins/execution-history/src/react/filter-rail.tsx	Colors actor facet dots and labels using the facet's stable actorId.
packages/plugins/execution-history/src/react/run-row.tsx	Changes run-row actor coloring from actorKind to actorId.
packages/plugins/execution-history/src/react/detail-drawer.tsx	Adds an identity-colored actor dot and text treatment while preserving wrapping for long labels.

_{Reviews (1): Last reviewed commit: "feat(execution-history): color actors by..." | Re-trigger Greptile}