chore: update project state and prepare for image support development

- Add comprehensive image test document with various image types
- Update project structure with development artifacts
- Prepare foundation for image support enhancement phase
- Include test files for validating image editing workflows

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

node_modules/find-up/index.js

@@ -0,0 +1,89 @@
+'use strict';
+const path = require('path');
+const locatePath = require('locate-path');
+const pathExists = require('path-exists');
+
+const stop = Symbol('findUp.stop');
+
+module.exports = async (name, options = {}) => {
+	let directory = path.resolve(options.cwd || '');
+	const {root} = path.parse(directory);
+	const paths = [].concat(name);
+
+	const runMatcher = async locateOptions => {
+		if (typeof name !== 'function') {
+			return locatePath(paths, locateOptions);
+		}
+
+		const foundPath = await name(locateOptions.cwd);
+		if (typeof foundPath === 'string') {
+			return locatePath([foundPath], locateOptions);
+		}
+
+		return foundPath;
+	};
+
+	// eslint-disable-next-line no-constant-condition
+	while (true) {
+		// eslint-disable-next-line no-await-in-loop
+		const foundPath = await runMatcher({...options, cwd: directory});
+
+		if (foundPath === stop) {
+			return;
+		}
+
+		if (foundPath) {
+			return path.resolve(directory, foundPath);
+		}
+
+		if (directory === root) {
+			return;
+		}
+
+		directory = path.dirname(directory);
+	}
+};
+
+module.exports.sync = (name, options = {}) => {
+	let directory = path.resolve(options.cwd || '');
+	const {root} = path.parse(directory);
+	const paths = [].concat(name);
+
+	const runMatcher = locateOptions => {
+		if (typeof name !== 'function') {
+			return locatePath.sync(paths, locateOptions);
+		}
+
+		const foundPath = name(locateOptions.cwd);
+		if (typeof foundPath === 'string') {
+			return locatePath.sync([foundPath], locateOptions);
+		}
+
+		return foundPath;
+	};
+
+	// eslint-disable-next-line no-constant-condition
+	while (true) {
+		const foundPath = runMatcher({...options, cwd: directory});
+
+		if (foundPath === stop) {
+			return;
+		}
+
+		if (foundPath) {
+			return path.resolve(directory, foundPath);
+		}
+
+		if (directory === root) {
+			return;
+		}
+
+		directory = path.dirname(directory);
+	}
+};
+
+module.exports.exists = pathExists;
+
+module.exports.sync.exists = pathExists.sync;
+
+module.exports.stop = stop;