Add Signals update timeline

[JoviDeCroock]

The Updates view makes individual changes visible, but it is difficult to understand their chronological grouping and causal depth.

This adds a Timeline tab that retains bounded update cascades, preserves runtime instance identity, and supports filtering and focusing by signal ID.

Note

Authored with GLM 5.2.

[changeset-bot]

🦋 Changeset detected

Latest commit: 1218405

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@preact/signals-devtools-ui	Patch
preact-signals-devtools	Patch

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[github-actions]

Size Change: +4.84 kB (+2.48%)

Total Size: 200 kB

📦 View Changed

Filename	Size	Change
docs/dist/assets/EmbeddedDevtools-********.js	23 kB	+1.44 kB (+6.69%)	🔍
docs/dist/assets/style-********.css	7.19 kB	+715 B (+11.04%)	⚠️
packages/devtools-ui/dist/devtools-ui.js	21.2 kB	+1.35 kB (+6.8%)	🔍
packages/devtools-ui/dist/devtools-ui.mjs	20.6 kB	+1.33 kB (+6.92%)	🔍

ℹ️ View Unchanged

Filename	Size
docs/dist/assets/bench-********.js	1.6 kB
docs/dist/assets/client-********.js	46.6 kB
docs/dist/assets/devtools-********.js	910 B
docs/dist/assets/index-********.js	1.21 kB
docs/dist/assets/jsxRuntime.module-********.js	300 B
docs/dist/assets/preact.module-********.js	4.74 kB
docs/dist/assets/signals-core.module-********.js	1.92 kB
docs/dist/assets/signals.module-********.js	2.65 kB
docs/dist/assets/Unmount-********.js	651 B
docs/dist/assets/utils.module-********.js	516 B
docs/dist/basic-********.js	250 B
docs/dist/nesting-********.js	1.15 kB
docs/dist/react-********.js	242 B
packages/core/dist/signals-core.js	1.94 kB
packages/core/dist/signals-core.mjs	1.93 kB
packages/debug/dist/debug.js	4.72 kB
packages/debug/dist/debug.mjs	4.24 kB
packages/devtools-adapter/dist/devtools-adapter.js	2.36 kB
packages/devtools-adapter/dist/devtools-adapter.mjs	2.07 kB
packages/preact-transform/dist/signals-transform.js	1.66 kB
packages/preact-transform/dist/signals-transform.mjs	1.61 kB
packages/preact-transform/dist/signals-transform.umd.js	1.77 kB
packages/preact/dist/signals.js	1.81 kB
packages/preact/dist/signals.mjs	1.74 kB
packages/react-transform/dist/signals-transform.js	7.63 kB
packages/react-transform/dist/signals-transform.mjs	6.78 kB
packages/react-transform/dist/signals-transform.umd.js	7.75 kB
packages/react/dist/signals.js	214 B
packages/react/dist/signals.mjs	165 B
packages/vite-plugin/dist/vite-plugin.js	8.86 kB
packages/vite-plugin/dist/vite-plugin.mjs	7.86 kB

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