**chore(version, docs): bump version to 0.9.14 and update build documentation**

- Updated `npm` badge in `README.md` to reflect version `0.9.14`.
- Updated `VERSION` constant in `src/utils/version.ts` to `0.9.14`.
- Replaced `build:all` script references in documentation with separate `build` and `build:browser` commands for better clarity.
- Adjusted `demo` script to build both Node.js and browser versions before running the demo.
- Updated prerequisites in `README.demo.md` to align with the new build workflow.
- Refined `package.json` `files` field to clean up package distribution artifacts.

These changes ensure version consistency, clarify build processes, and improve documentation to streamline the developer experience.

package.json

@@ -85,9 +85,7 @@
     "LICENSE",
     "README.md",
     "cli-wrapper.js",
-    "brainy.png",
-    "!dist/cli.js",
-    "!dist/cli.js.map"
+    "brainy.png"
   ],
   "devDependencies": {
     "@rollup/plugin-commonjs": "^25.0.7",