feat: initialize markr nostr bookmark client

- Add project structure with TypeScript, React, and Vite
- Implement nostr authentication using browser extension (NIP-07)
- Add NIP-51 compliant bookmark fetching and display
- Create minimal UI with login and bookmark components
- Integrate applesauce-core and applesauce-react libraries
- Add responsive styling with dark/light mode support
- Include comprehensive README with setup instructions

This is a minimal MVP for a nostr bookmark client that allows users to
view their bookmarks according to NIP-51 specification.

node_modules/@noble/curves/esm/utils.d.ts

@@ -0,0 +1,110 @@
+export { abytes, anumber, bytesToHex, bytesToUtf8, concatBytes, hexToBytes, isBytes, randomBytes, utf8ToBytes, } from '@noble/hashes/utils.js';
+export type Hex = Uint8Array | string;
+export type PrivKey = Hex | bigint;
+export type CHash = {
+    (message: Uint8Array | string): Uint8Array;
+    blockLen: number;
+    outputLen: number;
+    create(opts?: {
+        dkLen?: number;
+    }): any;
+};
+export type FHash = (message: Uint8Array | string) => Uint8Array;
+export declare function abool(title: string, value: boolean): void;
+export declare function _abool2(value: boolean, title?: string): boolean;
+/** Asserts something is Uint8Array. */
+export declare function _abytes2(value: Uint8Array, length?: number, title?: string): Uint8Array;
+export declare function numberToHexUnpadded(num: number | bigint): string;
+export declare function hexToNumber(hex: string): bigint;
+export declare function bytesToNumberBE(bytes: Uint8Array): bigint;
+export declare function bytesToNumberLE(bytes: Uint8Array): bigint;
+export declare function numberToBytesBE(n: number | bigint, len: number): Uint8Array;
+export declare function numberToBytesLE(n: number | bigint, len: number): Uint8Array;
+export declare function numberToVarBytesBE(n: number | bigint): Uint8Array;
+/**
+ * Takes hex string or Uint8Array, converts to Uint8Array.
+ * Validates output length.
+ * Will throw error for other types.
+ * @param title descriptive title for an error e.g. 'secret key'
+ * @param hex hex string or Uint8Array
+ * @param expectedLength optional, will compare to result array's length
+ * @returns
+ */
+export declare function ensureBytes(title: string, hex: Hex, expectedLength?: number): Uint8Array;
+export declare function equalBytes(a: Uint8Array, b: Uint8Array): boolean;
+/**
+ * Copies Uint8Array. We can't use u8a.slice(), because u8a can be Buffer,
+ * and Buffer#slice creates mutable copy. Never use Buffers!
+ */
+export declare function copyBytes(bytes: Uint8Array): Uint8Array;
+/**
+ * Decodes 7-bit ASCII string to Uint8Array, throws on non-ascii symbols
+ * Should be safe to use for things expected to be ASCII.
+ * Returns exact same result as utf8ToBytes for ASCII or throws.
+ */
+export declare function asciiToBytes(ascii: string): Uint8Array;
+export declare function inRange(n: bigint, min: bigint, max: bigint): boolean;
+/**
+ * Asserts min <= n < max. NOTE: It's < max and not <= max.
+ * @example
+ * aInRange('x', x, 1n, 256n); // would assume x is in (1n..255n)
+ */
+export declare function aInRange(title: string, n: bigint, min: bigint, max: bigint): void;
+/**
+ * Calculates amount of bits in a bigint.
+ * Same as `n.toString(2).length`
+ * TODO: merge with nLength in modular
+ */
+export declare function bitLen(n: bigint): number;
+/**
+ * Gets single bit at position.
+ * NOTE: first bit position is 0 (same as arrays)
+ * Same as `!!+Array.from(n.toString(2)).reverse()[pos]`
+ */
+export declare function bitGet(n: bigint, pos: number): bigint;
+/**
+ * Sets single bit at position.
+ */
+export declare function bitSet(n: bigint, pos: number, value: boolean): bigint;
+/**
+ * Calculate mask for N bits. Not using ** operator with bigints because of old engines.
+ * Same as BigInt(`0b${Array(i).fill('1').join('')}`)
+ */
+export declare const bitMask: (n: number) => bigint;
+type Pred<T> = (v: Uint8Array) => T | undefined;
+/**
+ * Minimal HMAC-DRBG from NIST 800-90 for RFC6979 sigs.
+ * @returns function that will call DRBG until 2nd arg returns something meaningful
+ * @example
+ *   const drbg = createHmacDRBG<Key>(32, 32, hmac);
+ *   drbg(seed, bytesToKey); // bytesToKey must return Key or undefined
+ */
+export declare function createHmacDrbg<T>(hashLen: number, qByteLen: number, hmacFn: (key: Uint8Array, ...messages: Uint8Array[]) => Uint8Array): (seed: Uint8Array, predicate: Pred<T>) => T;
+declare const validatorFns: {
+    readonly bigint: (val: any) => boolean;
+    readonly function: (val: any) => boolean;
+    readonly boolean: (val: any) => boolean;
+    readonly string: (val: any) => boolean;
+    readonly stringOrUint8Array: (val: any) => boolean;
+    readonly isSafeInteger: (val: any) => boolean;
+    readonly array: (val: any) => boolean;
+    readonly field: (val: any, object: any) => any;
+    readonly hash: (val: any) => boolean;
+};
+type Validator = keyof typeof validatorFns;
+type ValMap<T extends Record<string, any>> = {
+    [K in keyof T]?: Validator;
+};
+export declare function validateObject<T extends Record<string, any>>(object: T, validators: ValMap<T>, optValidators?: ValMap<T>): T;
+export declare function isHash(val: CHash): boolean;
+export declare function _validateObject(object: Record<string, any>, fields: Record<string, string>, optFields?: Record<string, string>): void;
+/**
+ * throws not implemented error
+ */
+export declare const notImplemented: () => never;
+/**
+ * Memoizes (caches) computation result.
+ * Uses WeakMap: the value is going auto-cleaned by GC after last reference is removed.
+ */
+export declare function memoized<T extends object, R, O extends any[]>(fn: (arg: T, ...args: O) => R): (arg: T, ...args: O) => R;
+//# sourceMappingURL=utils.d.ts.map