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/micromark-factory-title/dev/index.js

@@ -0,0 +1,169 @@
+/**
+ * @import {
+ *   Code,
+ *   Effects,
+ *   State,
+ *   TokenType
+ * } from 'micromark-util-types'
+ */
+
+import {factorySpace} from 'micromark-factory-space'
+import {markdownLineEnding} from 'micromark-util-character'
+import {codes, constants, types} from 'micromark-util-symbol'
+
+/**
+ * Parse titles.
+ *
+ * ###### Examples
+ *
+ * ```markdown
+ * "a"
+ * 'b'
+ * (c)
+ * "a
+ * b"
+ * 'a
+ *     b'
+ * (a\)b)
+ * ```
+ *
+ * @param {Effects} effects
+ *   Context.
+ * @param {State} ok
+ *   State switched to when successful.
+ * @param {State} nok
+ *   State switched to when unsuccessful.
+ * @param {TokenType} type
+ *   Type of the whole title (`"a"`, `'b'`, `(c)`).
+ * @param {TokenType} markerType
+ *   Type for the markers (`"`, `'`, `(`, and `)`).
+ * @param {TokenType} stringType
+ *   Type for the value (`a`).
+ * @returns {State}
+ *   Start state.
+ */
+export function factoryTitle(effects, ok, nok, type, markerType, stringType) {
+  /** @type {NonNullable<Code>} */
+  let marker
+
+  return start
+
+  /**
+   * Start of title.
+   *
+   * ```markdown
+   * > | "a"
+   *     ^
+   * ```
+   *
+   * @type {State}
+   */
+  function start(code) {
+    if (
+      code === codes.quotationMark ||
+      code === codes.apostrophe ||
+      code === codes.leftParenthesis
+    ) {
+      effects.enter(type)
+      effects.enter(markerType)
+      effects.consume(code)
+      effects.exit(markerType)
+      marker = code === codes.leftParenthesis ? codes.rightParenthesis : code
+      return begin
+    }
+
+    return nok(code)
+  }
+
+  /**
+   * After opening marker.
+   *
+   * This is also used at the closing marker.
+   *
+   * ```markdown
+   * > | "a"
+   *      ^
+   * ```
+   *
+   * @type {State}
+   */
+  function begin(code) {
+    if (code === marker) {
+      effects.enter(markerType)
+      effects.consume(code)
+      effects.exit(markerType)
+      effects.exit(type)
+      return ok
+    }
+
+    effects.enter(stringType)
+    return atBreak(code)
+  }
+
+  /**
+   * At something, before something else.
+   *
+   * ```markdown
+   * > | "a"
+   *      ^
+   * ```
+   *
+   * @type {State}
+   */
+  function atBreak(code) {
+    if (code === marker) {
+      effects.exit(stringType)
+      return begin(marker)
+    }
+
+    if (code === codes.eof) {
+      return nok(code)
+    }
+
+    // Note: blank lines can’t exist in content.
+    if (markdownLineEnding(code)) {
+      // To do: use `space_or_tab_eol_with_options`, connect.
+      effects.enter(types.lineEnding)
+      effects.consume(code)
+      effects.exit(types.lineEnding)
+      return factorySpace(effects, atBreak, types.linePrefix)
+    }
+
+    effects.enter(types.chunkString, {contentType: constants.contentTypeString})
+    return inside(code)
+  }
+
+  /**
+   *
+   *
+   * @type {State}
+   */
+  function inside(code) {
+    if (code === marker || code === codes.eof || markdownLineEnding(code)) {
+      effects.exit(types.chunkString)
+      return atBreak(code)
+    }
+
+    effects.consume(code)
+    return code === codes.backslash ? escape : inside
+  }
+
+  /**
+   * After `\`, at a special character.
+   *
+   * ```markdown
+   * > | "a\*b"
+   *      ^
+   * ```
+   *
+   * @type {State}
+   */
+  function escape(code) {
+    if (code === marker || code === codes.backslash) {
+      effects.consume(code)
+      return inside
+    }
+
+    return inside(code)
+  }
+}