[client,management,signal] Handle grpc from ws proxy internally instead of via tcp

[lixmal]

Describe your changes

This eliminates TLS, TCP and any server name mismatches

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Checklist

• Is it a bug fix
• Is a typo/documentation fix
• Is a feature enhancement
• It is a refactor
• Created tests that fail without the change (if possible)

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Documentation

Select exactly one:

• I added/updated documentation for this change
• Documentation is not needed for this change (explain why)

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Paste the PR link from https://github.com/netbirdio/docs here:

https://github.com/netbirdio/docs/pull/__

[Copilot]

Pull Request Overview

This PR refactors the WebSocket proxy implementation to handle gRPC connections internally through HTTP/2 instead of proxying to external TCP endpoints. This eliminates the need for TLS, TCP connections, and server name mismatches by using in-memory pipes and direct gRPC handler integration.

• Replaced TCP connection handling with in-memory pipe connections
• Updated the proxy to accept gRPC handlers directly instead of TCP addresses
• Simplified connection management and error handling logic

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
util/wsproxy/server/proxy.go	Core refactor replacing TCP-based proxying with direct gRPC handler integration via HTTP/2
signal/cmd/run.go	Updated to pass gRPC server instance instead of TCP address to websocket proxy
management/internals/server/server.go	Updated to pass gRPC handler instead of TCP address to websocket proxy
client/grpc/dialer.go	Simplified TLS handling for JavaScript runtime by removing InsecureSkipVerify option

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[Copilot]

Pull Request Overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud