feat(web_core): add resolveAction and improve error handling (a2ui-project#856)

* feat(web_core): bump version to 0.8.6 with expression and formatDate updates

- Update logical functions (`and`, `or`) to require the `values` array argument, removing deprecated individual arguments.
- Update `formatDate` to require `format` parameter, utilizing `date-fns`.
- Update expressions and math schemas with a preprocess layer for cleaner `null` layout to `undefined` coercion.
- Update guards and data-context tests for expanded v0.9 safety checks.

* Update package locks

* feat(web_core): Implement error reporting in DataContext

- Added SurfaceModel.dispatchError to format and emit error events conforming to v0.9 generic error schema.
- Updated DataContext.resolveDynamicValue and evaluateFunctionReactive to capture A2uiExpressionError & ZodError, dispatching to surface and returning fallbacks to avoid crashes.
- Updated ComponentContext and test suites (data-context, basic_functions, function_execution) to align with return-instead-of-throw design.
- All tests passing green.

* Update renderers/web_core/src/v0_9/basic_catalog/functions/basic_functions.test.ts

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* refactor(web_core): replace email validation with more robust regex

Updated the `EmailImplementation` to use a restricting regex requiring a 2-char TLD and standard valid characters. Increased the test coverage in `basic_functions.test.ts` for multiple email formats and fixed an unrelated issue in the `divide` test that was causing test failures due to strict type checking.

* docs(web_core): clarify action context resolution is non-recursive by design

Updated the comment in `resolveAction` to explain that its one-level non-recursive behavior aligns with the schema spec, which requires values to be single `DynamicValue` types and restricts arbitrary nesting.

* Cleaning up test, converting an Error to A2uiExpressionError

* Bump patch version

Author: gspencergoog

renderers/angular/package-lock.json

@@ -1,6 +1,15 @@
+## 0.8.6
+
+- Update logical functions (`and`, `or`) to require a `values` array argument, removing deprecated individual arguments.
+- Update `formatDate` to require `format` parameter to align with new configuration, utilizing `date-fns`.
+- Add `date-fns` dependency for expression string formatting workflows.
+- Update math and comparison expression schemas with preprocessing step to correctly coerce `null` parameters into `undefined` for tighter validation constraints.
+- Fix associated tests in expressions and rendering models corresponding to validation updates.
+- Improve error messages to include the function name and the catalog ID.
+
 ## 0.8.5
 
-- Add `V8ErrorConstructor` interface to be able to access V8-only 
+- Add `V8ErrorConstructor` interface to be able to access V8-only
   `captureStackTrace` method in errors.
 - Removes dependency from `v0_8` to `v0_9` by duplicating the `errors.ts` file.
 

renderers/lit/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@a2ui/web_core",
-  "version": "0.8.5",
+  "version": "0.8.6",
   "description": "A2UI Core Library",
   "main": "./dist/src/v0_8/index.js",
   "types": "./dist/src/v0_8/index.d.ts",
@@ -93,6 +93,7 @@
   },
   "dependencies": {
     "@preact/signals-core": "^1.13.0",
+    "date-fns": "^4.1.0",
     "zod": "^3.25.76"
   }
 }