simplify api reference section

Author: lopert

README.md

@@ -125,146 +125,14 @@ describe("Function Tests", () => {
 
 ### Core Functions
 
-#### `loadFixture(fixturePath)`
-
-Loads a fixture file from the specified path.
-
-**Parameters:**
-
-- `fixturePath` (string): Path to the fixture JSON file
-
-**Returns:** Promise<FixtureData> - Fixture object containing `export`, `input`, `expectedOutput`, and `target`
-
-**Example:**
-
-```javascript
-const fixture = await loadFixture("./fixtures/my-test.json");
-```
-
----
-
-#### `loadSchema(schemaPath)`
-
-Loads a GraphQL schema from a file.
-
-**Parameters:**
-
-- `schemaPath` (string): Path to the schema.graphql file
-
-**Returns:** Promise<GraphQLSchema> - Parsed GraphQL schema
-
-**Example:**
-
-```javascript
-const schema = await loadSchema("./schema.graphql");
-```
-
----
-
-#### `loadInputQuery(queryPath)`
-
-Loads and parses a GraphQL input query.
-
-**Parameters:**
-
-- `queryPath` (string): Path to the GraphQL query file
-
-**Returns:** Promise<DocumentNode> - Parsed GraphQL query AST
-
-**Example:**
-
-```javascript
-const inputQueryAST = await loadInputQuery("./src/run.graphql");
-```
-
----
-
-#### `validateTestAssets(options)`
-
-Validates test assets including input query, fixture input/output, and query-fixture match.
-
-**Parameters:**
-
-- `options` (ValidateTestAssetsOptions):
-  - `schema` (GraphQLSchema): The GraphQL schema
-  - `fixture` (FixtureData): The fixture to validate
-  - `inputQueryAST` (DocumentNode): The input query AST
-  - `mutationName` (string, optional): The mutation name (auto-detected if not provided)
-  - `resultParameterName` (string, optional): The result parameter name (auto-detected if not provided)
-
-**Returns:** Promise<CompleteValidationResult> - Validation results for all validation steps:
-
-- `inputQuery`: { valid: boolean, errors: readonly GraphQLError[] }
-- `inputFixture`: { valid: boolean, errors: string[], data: any }
-- `inputQueryFixtureMatch`: { valid: boolean, errors: string[] }
-- `outputFixture`: { valid: boolean, errors: { message: string }[], mutationName: string | null, resultParameterType: string | null }
-- `mutationName?`: string - Auto-detected mutation name
-- `resultParameterName?`: string - Auto-detected result parameter name
-- `error?`: string - Top-level error if validation fails
-
-**Example:**
-
-```javascript
-const validationResult = await validateTestAssets({
-  schema,
-  fixture,
-  inputQueryAST,
-});
-
-// Log validation results
-console.log(`  Input Query: ${validationResult.inputQuery.valid ? '✅' : '❌'}`);
-console.log(`  Input Fixture: ${validationResult.inputFixture.valid ? '✅' : '❌'}`);
-console.log(`  Input Query-Fixture Match: ${validationResult.inputQueryFixtureMatch.valid ? '✅' : '❌'}`);
-console.log(`  Output Fixture: ${validationResult.outputFixture.valid ? '✅' : '❌'}`);
-```
-
----
-
-#### `buildFunction(functionPath?)`
-
-Builds a Shopify function using the Shopify CLI.
-
-**Parameters:**
-
-- `functionPath` (string, optional): Path to the function directory. If not provided, will auto-detect from current working directory.
-
-**Returns:** Promise<BuildFunctionResult> - Build result with `success`, `output`, and `error` properties
-
-**Example:**
-
-```javascript
-const buildResult = await buildFunction("/path/to/function");
-if (!buildResult.success) {
-  console.error("Build failed:", buildResult.error);
-}
-```
-
----
-
-#### `runFunction(exportName, input, functionPath?)`
-
-Runs a Shopify function using the Shopify CLI.
-
-**Parameters:**
-
-- `exportName` (string): The export name of the function to run
-- `input` (object): The input data to pass to the function
-- `functionPath` (string, optional): Path to the function directory. If not provided, will auto-detect from current working directory.
-
-**Returns:** Promise<RunFunctionResult> - Result object with:
-- `result`: { output: any } | null - The function execution result
-- `error`: string | null - Error message if execution failed
-
-**Example:**
-
-```javascript
-const runResult = await runFunction("run", fixtureInput, "/path/to/function");
-console.log("Function output:", runResult.result.output);
-```
-
-**Note:** Both `buildFunction` and `runFunction` will automatically detect the function directory by looking for `shopify.function.toml` in common locations (current directory, src/, functions/, extensions/).
-
----
+- [`loadFixture`](./src/methods/load-fixture.ts) - Load a fixture file from the specified path
+- [`loadSchema`](./src/methods/load-schema.ts) - Load a GraphQL schema from a file
+- [`loadInputQuery`](./src/methods/load-input-query.ts) - Load and parse a GraphQL input query
+- [`validateTestAssets`](./src/methods/validate-fixture.ts) - Validate test assets including input query, fixture input/output, and query-fixture match
+- [`buildFunction`](./src/methods/build-function.ts) - Build a Shopify function using the Shopify CLI
+- [`runFunction`](./src/methods/run-function.ts) - Run a Shopify function using the Shopify CLI
+
+See [wasm-testing-helpers.ts](./src/wasm-testing-helpers.ts) for all exported types.
 
 ## Development