feat: update application versioning and enhance release management

- Bumped application version to 1.0.0 across all relevant package files, ensuring consistency in versioning.
- Introduced new environment variables for application version and release URL in Dockerfiles, improving deployment transparency.
- Enhanced the health check endpoint to return the current application version, providing better visibility for monitoring.
- Updated CI/CD workflows to include steps for preparing and publishing releases, streamlining the release process.
- Added a new "Releases" section in the application sidebar for easier access to version information.

backend/src/index.ts

@@ -47,7 +47,11 @@ await app.register(cors, {
 
 // ── routes ─────────────────────────────────────────────────────────────────────
 
-app.get("/health", async () => ({ status: "ok", timestamp: new Date().toISOString() }))
+app.get("/health", async () => ({
+  status: "ok",
+  timestamp: new Date().toISOString(),
+  version: process.env.APP_VERSION ?? "dev",
+}))
 
 await app.register(serversRoutes, { prefix: "/api/servers" })
 await app.register(bgpRoutes,     { prefix: "/api" })