Changelog

Replace ~95 lines of inline resize code (fields, 4 handlers,

ApplyDetailPanelRatio, FindControl lookups) with the shared

SplitPaneLayout control from UI.Adaptive. The code-behind now

has a single OnDetailPanelRatioChanged event handler for

persistence.

Also adds IsFinite guard in SetDetailPanelRatio to prevent

JSON serialization crash when ratio computes to Infinity.

Replace hardcoded Tasks/Projects endpoint sections with an ItemsControl

that discovers all IApiProvider plugins at runtime via IPluginRegistry.

Each plugin gets a collapsible Expander showing its routes with color-coded

HTTP methods (GET=green, POST=primary, PATCH=warning, DELETE=danger).

• LoadRoutes() resolves plugin display names from metadata
• MethodBrush resolved from theme resources at load time
• Empty state shown when no plugins register API endpoints
• Shell endpoints (status, routes) remain static

New ApiDocsWindow dialog accessible from Settings > Developer via

"View Documentation" link. Shows a comprehensive guide with:

• Overview of the local API and its purpose
• Authentication instructions (X-API-Key and Bearer token)
• Step-by-step getting started guide with curl examples
• Full endpoint listing (shell, tasks, projects) with color-coded

HTTP methods (GET/POST/PATCH/DELETE)

• Create and search task examples with complete curl commands
• Security note about localhost-only binding and key management

The split grid uses a * column for the left pane, but the grid's

own Bounds.Width gets inflated by content desired size, preventing

the left pane from shrinking properly. Fixed by reading available

width from the parent Panel (which truly fills available space)

instead of from the grid itself. Both ApplyDetailPanelRatio and

drag resize now use parent width for calculations.

Also added left margin on the left pane so items don't touch the

edge.

When ShowingTrash toggles, the TreeView becomes invisible. Avalonia

tears down TreeViewItem containers and resets IsExpanded to false via

the two-way binding, collapsing all nodes. When returning from trash,

wiki folders (and any expanded regular folders) appeared empty because

their expansion state was lost.

Fix: snapshot _expandedNodeIds when entering trash, then restore

expansion state on all nodes (including wiki folders) when leaving.

Wiki folders with children are always re-expanded by convention since

they don't participate in the _expandedNodeIds tracking.