* feat: add first draft of v2 public dashboard apis
* fix: remove duplicate call to GetDashboardByPublicIDV2 in GetPublicWidgetQueryRangeV2
* fix: fill fields that were in the data blob in v1
* chore: trim comments
* fix: remove fields that v1 also removes when redacting
* chore: rename method name
* test: unit tests for GetPanelQuery
* fix: add fill gaps to query
* fix: generate api specs
* test: add integration tests for new v2 public apis
* fix: add query validation and aggregation validation
* fix: remove unneeded tags db call from public query range api
* fix: redact variable queries as well
* fix: move regex out of method so that it is only compiled once per package load
* chore: remove empty line
* fix: use pointer to specs during redaction
* fix: move single expression validation to dashboard package, use chparser for it
* test: add integration test for variable query redaction
* test: add integration test for expression with many parens
* test: use valid query in integration test
* test: use realistic query in variable
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