Changelog

The linter added `private static void InitializeComponent() { throw

new NotImplementedException(); }` to all three tab UserControls. This

shadowed the Avalonia source generator's instance method, preventing

XAML from loading — all tabs rendered empty.

Data plugin had IIntentProvider implemented (DataPlugin.Intents.cs)

but never registered it in OnInitializeAsync — intents were unreachable

via the capability broker.

Changes:

• Register IIntentProvider and IIndexableContentProvider in OnInitializeAsync
• Add IIndexableContentProvider implementation (DataPlugin.IndexableContent.cs):

indexes plugin feature description, dataset schemas with column types,

and saved SQL queries for RAG vector search

• Add IIndexableContentProvider to class declaration
• Version bump: 1.21.2 → 1.21.3 (csproj + metadata)

Dashboard and Graph were the only plugins without any capability

interface implementations, so they never appeared in the Dashboard

Data tab's plugin metrics list.

Dashboard:

• Implements IDataMetricsProvider via partial class
• Reports subsystem count from SubsystemTracker as runtime metrics
• Version bump: 1.5.1 → 1.5.2

Graph:

• Implements IDataMetricsProvider via partial class
• Reports cached graph node and edge counts as runtime metrics
• Version bump: 1.1.0 → 1.1.1

Note: Build may fail at this commit due to concurrent in-progress

work by another session — will be resolved in a subsequent commit.

Extract Overview, Data, and Subsystems tabs from the monolithic

DashboardView.axaml (~1035 lines) into three independent UserControls.

A single ContentControl in the star row now swaps between lazily-created

and cached tab controls, ensuring only one tab exists in the visual tree

at a time. This eliminates the persistent scroll/layout bugs caused by

three competing elements sharing one Grid star cell with IsVisible toggling.

• DashboardOverviewTab: marketplace grid, category pills, stat cards,

responsive grid sizing handler, category-pill + plugin-action styles

• DashboardDataTab: storage metrics, plugin data tables, DB diagnostics
• DashboardSubsystemsTab: subsystem groups with live metrics
• DashboardView.axaml slimmed to ~110 lines (toolbar + ContentControl)
• Code-behind uses Dictionary<DashboardTab, Control> cache with

PropertyChanged listener for instant tab switching

• No ViewModel changes — all tabs inherit DataContext from ContentControl
• Version bump: 1.5.0 → 1.5.1

ScrollViewer.Padding shrinks the viewport, reducing visible content

area. Move the spacing to Margin on the inner StackPanel instead —

this adds the spacing as part of the scrollable content extent, so

the 80px bottom space is scrollable buffer rather than viewport

reduction.