feat: add linting and formatting setup with configs in .config folder

- Add ESLint configuration with TypeScript support
- Add Prettier configuration for code formatting
- Move all config files to .config/ folder to keep them hidden from Obsidian
- Add lint and format scripts to package.json
- Add .eslintignore and .prettierignore files
- Remove framework-specific configuration
- Configure for general JavaScript/TypeScript development

.prettierignore

@@ -0,0 +1,26 @@
+# Ignore Obsidian folders
+00_Inbox/
+01_Projects/
+02_Areas/
+03_Resources/
+04_Archives/
+05_Attachments/
+06_Metadata/
+OLD_VAULT/
+
+# Ignore dependencies
+node_modules/
+package-lock.json
+
+# Ignore build/dist
+dist/
+build/
+
+# Ignore hidden folders
+.obsidian/
+.trash/
+.tmp/
+.backup/
+
+# Ignore git
+.git/