v88.0.0

What's Changed

• Add Column.cellFlag for Excel-style corner flags on grid cells by @amcclain in #4684
• Split grid tooltip styling from tooltip state by @amcclain in #4686
• Bump github/codeql-action from 4.37.9 to 4.38.0 by @dependabot[bot] in #4692
• Bump anthropics/claude-code-action from 1.0.214 to 1.0.220 by @dependabot[bot] in #4693
• Upgrade ag-Grid to v36 by @lbwexler in #4470
• Process pending deprecations for v88 by @lbwexler in #4679
• Cube: compositional aggregation for AVG / AVG_STRICT by @lbwexler in #4659
• Add support for expandable column groups by @haynesjm42 in #4694
• Auto-trim leading/trailing whitespace in single-line text inputs by @amcclain in #4697
• Menu tune-up: headings, Menu and MenuButton, closed token union, menu fixes by @amcclain in #4696
• [HR-3329] Style grids via AG Grid's Theming API by @minusleaf in #4695
• Migrate to TC39 Stage 3 modern decorators by @lbwexler in #4333
• Upgrade to MobX 7 and mobx-react-lite 5 by @lbwexler in #4702
• Bump xh/hoist-dev-utils/.github/actions/validate-release-version from 15.0.1 to 15.0.2 by @dependabot[bot] in #4703
• Bump xh/hoist-dev-utils/.github/actions/create-tag-and-github-release from 15.0.1 to 15.0.2 by @dependabot[bot] in #4704
• Bump anthropics/claude-code-action from 1.0.220 to 1.0.226 by @dependabot[bot] in #4705
• Bump xh/hoist-dev-utils/.github/actions/prepare-npm-snapshot-version from 15.0.1 to 15.0.2 by @dependabot[bot] in #4706
• Fix spurious unhandled rejection from Promise.linkTo() by @lbwexler in #4714
• Fix Mask and LoadingIndicator ignoring bind changes after first render by @lbwexler in #4716
• Parse Field defaultValue once on construction by @lbwexler in #4717
• Fix desktop DateInput date-fns locale load error by @lbwexler in #4719
• Add CodeInput.extensions prop for app-supplied CodeMirror extensions by @lbwexler in #4721
• Add Banner component and Panel.banner prop by @amcclain in #4724
• Improve coverage of sensitive data redaction in exceptions by @lbwexler in #4720
• MCP docs search v2: section-level ranked retrieval and section reads by @amcclain in #4727
• Bump github/codeql-action from 4.38.0 to 4.38.1 by @dependabot[bot] in #4732
• TabSwitcher: support group headers in vertical switchers by @lbwexler in #4722
• Bump pnpm/setup from 2 to 3 by @dependabot[bot] in #4730
• MCP symbol tools v2: ranked concise search, member summaries and filters, import paths, external members by @amcclain in #4736
• Library nits: checkboxRenderer fix, MessageButtonSpec, doc corrections by @amcclain in #4738
• Re-export app-facing symbols missing from package barrels by @amcclain in #4737
• Enable the hoist-ai plugin for this repo and say which skills apply by @amcclain in #4740
• Bring guidance docs to the v88 decorator and service-install forms by @amcclain in #4741
• MCP symbol tools: import path is the barrel when one exists, otherwise the file by @amcclain in #4743
• Tighten the 88.0.0 changelog entry and record its conventions by @amcclain in #4742
• Bump anthropics/claude-code-action from 1.0.226 to 1.0.233 by @dependabot[bot] in #4731
• Scope TabContainerModel route params to their owning tab, restore per-tab routes by @amcclain in #4728
• Refresh vendored MSAL redirect bridge + add check:vendored CI step by @lbwexler in #4718
• Cube View: diff only StoreTransaction.changedFields on value-only leaf updates by @lbwexler in #4723
• Render DashCanvas widgets once at their final width by @amcclain in #4729
• Default ViewManagerModel.manageGlobal from server-side canWriteGlobal by @lbwexler in #4744

Full Changelog: v87.3.0...v88.0.0