FE-591: Add Metrics: timeline picker, compiler, and drawer#8633

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kube wants to merge 52 commits intomainfrom

cf/fe-591-implement-basic-metrics

Commits on Apr 16, 2026

Add vertical orientation and icon-only mode to SegmentGroup

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Add basic simulate mode view and enable mode switching

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Add Scenario type, Drawer component, and Create Scenario UI

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Add showAsInitialState property to Place

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Extract shared scenario form and add View Scenario drawer

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Add LSP support for scenario expression editors

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Move simulation error display from Settings to Diagnostics tab

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Make parameters list scrollable in simulation settings

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Add scenario picker and Metrics section to Simulation Settings

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Prevent scrolling in single-line CodeEditor

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Expose scenario parameters via `scenario` object in LSP

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Wire scenario form to TanStack Form with LSP-gated submit

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Lint scenario expressions only when relevant

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Validate scenario name and parameter identifiers

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Widen drawer with viewport-aware max width

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Persist scenarios via Create/Save with Zod validation

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Store selected scenario in SimulationContext

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Add scenario expression compiler and wire into SimulationContext

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Add Create Scenario button to Simulation Settings

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Add Edit Scenario button and remove icon button gap

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Reduce gap
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Override context params/marking from compiled scenario and polish picker

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Remove Metrics section from Simulation Settings

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Add Metrics tab and disable Metrics/Experiments in Simulate view

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Update Positioner zIndex
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Refactor initialState to discriminated union, support colored places

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Rename Earth to Planet in satellite examples and simplify scenarios

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Flag RawMaterial and AvailableMachines as initial state in Production Machines

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Add ratio param type, code-mode compilation, and UI polish

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Show read-only spreadsheet for colored places when scenario is active

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Add "All Around the World" scenario to Satellites example

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Fix satellite velocity arrow disappearing for negative velocities

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Reduce parameter label weight in scenario form

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Add changeset
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Replace initial-state switch with checkbox in place properties

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Clarify default-starting-place hint text

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Add inline validation and empty-state hints to scenario form

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Cap simulation-settings parameter row width

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Fix petrinaut lint and typecheck errors

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Externalise use-sync-external-store in petrinaut lib build

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Rework Satellites Launcher scenarios around user-tweakable params

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Rename satellites scenario params and put launch_rate first

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Fix stale scenario param refs in satellite parameterOverrides

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Close .constructor-chain escape in scenario expression sandbox

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Add Default Production scenario to Production Machines

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Disable scenario picker while simulation is active

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Auto-snakify scenario parameter identifier on blur

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Use Switch for boolean scenario param default, fix NumberInput steps

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Add Metrics: timeline picker, compiler, and drawer
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Refine metric timeline picker and SIR example
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Add "Tokens per type" native timeline view
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Add "Transition firings" native timeline view
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