WHIP/WHEP のサンプルを追加

[voluntas]

This pull request introduces several important changes to the project, including updates to environment configurations, end-to-end (E2E) tests, and examples for WHIP and WHEP support. Additionally, it includes updates to dependencies in package.json and pnpm-lock.yaml.

Environment Configuration Updates:

• Updated VITE_SORA_SIGNALING_URL, VITE_SORA_CHANNEL_ID_PREFIX, and VITE_SORA_API_URL in .env.template to use production URLs. Added new environment variables for VITE_SORA_WHIP_ENDPOINT_URL and VITE_SORA_WHEP_ENDPOINT_URL.

E2E Test Configuration:

• Added VITE_SORA_WHIP_ENDPOINT_URL and VITE_SORA_WHEP_ENDPOINT_URL to the environment variables in .github/workflows/e2e-test.yml and .github/workflows/npm-pkg-e2e-test.yml. [1] [2]
• Updated CHANGES.md to include the addition of WHIP and WHEP tests.

WHIP and WHEP Examples:

• Added new WHIP and WHEP example pages in examples/index.html, examples/whep/index.html, examples/whep/main.mts, examples/whip/index.html, and examples/whip/main.mts. These examples demonstrate how to connect, disconnect, and handle media streams using WHIP and WHEP protocols. [1] [2] [3] [4] [5]

Dependency Updates:

• Updated vite to version 6.0.5 and vite-plugin-dts to version 4.4.0 in package.json and pnpm-lock.yaml. [1] [2]