feat: Docker network management with per-resource attachment

[BSalaeddin]

Adds first-class Docker network management to Dokploy — create, delete, and attach networks to any application or database service.

What changed

• New Networks page in the sidebar for managing Docker networks across servers
• Per-resource network attachment cards on each application and database service page
• Support for bridge and overlay drivers, with server scoping
• Duplicate name detection with user-friendly error messages
• Blocked deletion of networks that are still attached to services
• Migrations add network table and resource relation columns

Migration

New network table and junction columns on application + 6 database schemas. Non-breaking — existing services continue working without networks attached.

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Migration note

This PR adds a migration at index 0172. If another PR merging before this one also adds a migration at 0172 (e.g. the concurrent deployments PR), renumber this PR's migration to the next available index and regenerate the journal/snapshot (drizzle-kit generate after updating the schema). The SQL statements are independent and order does not matter.

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[BSalaeddin]

Demo

https://github.com/DevinoSolutions/dokploy-community/releases/download/v0.29.8-devino.1/Networks.mp4

[BSalaeddin]

Merged into canary as part of v0.29.8-devino.1. Upstream PR to follow.