Add extracted source directory and README navigation

extracted-source/node_modules/@modelcontextprotocol/sdk/dist/esm/server/zod-json-schema-compat.js

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+// zod-json-schema-compat.ts
+// ----------------------------------------------------
+// JSON Schema conversion for both Zod v3 and Zod v4 (Mini)
+// v3 uses your vendored converter; v4 uses Mini's toJSONSchema
+// ----------------------------------------------------
+import * as z4mini from 'zod/v4-mini';
+import { getObjectShape, safeParse, isZ4Schema, getLiteralValue } from './zod-compat.js';
+import { zodToJsonSchema } from 'zod-to-json-schema';
+function mapMiniTarget(t) {
+    if (!t)
+        return 'draft-7';
+    if (t === 'jsonSchema7' || t === 'draft-7')
+        return 'draft-7';
+    if (t === 'jsonSchema2019-09' || t === 'draft-2020-12')
+        return 'draft-2020-12';
+    return 'draft-7'; // fallback
+}
+export function toJsonSchemaCompat(schema, opts) {
+    if (isZ4Schema(schema)) {
+        // v4 branch — use Mini's built-in toJSONSchema
+        return z4mini.toJSONSchema(schema, {
+            target: mapMiniTarget(opts?.target),
+            io: opts?.pipeStrategy ?? 'input'
+        });
+    }
+    // v3 branch — use vendored converter
+    return zodToJsonSchema(schema, {
+        strictUnions: opts?.strictUnions ?? true,
+        pipeStrategy: opts?.pipeStrategy ?? 'input'
+    });
+}
+export function getMethodLiteral(schema) {
+    const shape = getObjectShape(schema);
+    const methodSchema = shape?.method;
+    if (!methodSchema) {
+        throw new Error('Schema is missing a method literal');
+    }
+    const value = getLiteralValue(methodSchema);
+    if (typeof value !== 'string') {
+        throw new Error('Schema method literal must be a string');
+    }
+    return value;
+}
+export function parseWithCompat(schema, data) {
+    const result = safeParse(schema, data);
+    if (!result.success) {
+        throw result.error;
+    }
+    return result.data;
+}
+//# sourceMappingURL=zod-json-schema-compat.js.map