[config][infra] add grafana-react monorepo integration

__Changes__
- Add GitHub workflow for syncing grafana-react to public repo
- Add moon.yml with build, test, lint, and CLI tasks
- Register grafana-react and dashboards project in moon workspace
- Add dashboards project to pnpm workspace
- Add notes documenting OSS sync workflow and schema alignment

__Why__
- Enables automatic sync of oss/grafana-react/pkg to kiwi-research/grafana-react
- Provides moon tasks for building dashboards within the monorepo

Co-Authored-By: Claude <noreply@anthropic.com>

Author: jordangarside

notes/GRAFANA_SCHEMA_REFERENCE.md

@@ -9,11 +9,13 @@ Grafana uses **CUE schemas** as the source of truth, which are code-generated in
 ### Panel-Specific Options
 
 Each panel type has its schema in:
+
 ```
 public/app/plugins/panel/<panel-type>/panelcfg.gen.ts
 ```
 
 Examples:
+
 - [timeseries/panelcfg.gen.ts](https://github.com/grafana/grafana/blob/main/public/app/plugins/panel/timeseries/panelcfg.gen.ts)
 - [stat/panelcfg.gen.ts](https://github.com/grafana/grafana/blob/main/public/app/plugins/panel/stat/panelcfg.gen.ts)
 - [table/panelcfg.gen.ts](https://github.com/grafana/grafana/blob/main/public/app/plugins/panel/table/panelcfg.gen.ts)
@@ -23,11 +25,13 @@ Examples:
 ### Common/Shared Types
 
 Shared types (legends, tooltips, axes, field config) are in:
+
 ```
 packages/grafana-schema/src/common/common.gen.ts
 ```
 
 Key interfaces:
+
 - `VizLegendOptions` - Legend display, placement, calcs
 - `VizTooltipOptions` - Tooltip mode, sort, dimensions
 - `GraphFieldConfig` - Line/bar/point styling, axis config, stacking
@@ -36,6 +40,7 @@ Key interfaces:
 ### NPM Package
 
 You can also explore types via the `@grafana/schema` package:
+
 ```bash
 pnpm add -D @grafana/schema
 ```
@@ -45,6 +50,7 @@ Then use your IDE to explore exported types.
 ## Panel Types Available
 
 Core panels in Grafana:
+
 - alertlist, annolist, barchart, bargauge, candlestick, canvas
 - dashlist, datagrid, flamegraph, gauge, geomap, heatmap
 - histogram, logs, news, nodeGraph, piechart, stat