fix(docker): point the baked API v2 rewrite at the calcom-api service

[JOY (JOY)]

next.config.ts turns NEXT_PUBLIC_API_V2_URL into a server-side rewrite that is baked at build time, so a runtime environment override cannot correct it. The published image shipped http://localhost:5555/api/v2 - inside the web container that resolves to the web container itself, where nothing listens on 5555, so every /api/v2/* request proxied through the web app failed. The API v2 service is published as calcom-api on the shared compose network (API_PORT defaults to 5555 per apps/api/v2/src/config/app.ts). Also carries the example-app next 15.5.24 bump that clears the last two critical Dependabot alerts.

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Note

Low Risk
CI build-arg-only change that corrects Docker networking for API v2 rewrites; no application logic changes in this diff.

Overview
Fixes broken /api/v2 traffic in the production Docker image by changing the NEXT_PUBLIC_API_V2_URL build arg in deploy-docker.yml from http://localhost:5555/api/v2 to http://calcom-api:5555/api/v2.

Because next.config.ts embeds that value in a build-time server rewrite, runtime env vars cannot override it. Inside the web container, localhost:5555 pointed at the web process itself (nothing listening there), so proxied API v2 calls failed. The new host matches the API v2 service name on the compose network.

Inline comments document this behavior and note that the image must be rebuilt if the service is renamed.

^{Reviewed by Cursor Bugbot for commit 886edf4. Configure here.}

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