[FEATURE] Multiplexing Multiple Streams over One Connection

[gimlet2]

Feature Description

Support multiplexing of multiple HTTP2 streams over a single TCP connection.

Problem/Use Case

Multiplexing is a core HTTP2 feature that allows concurrent streams, reducing latency and improving resource utilization.

Proposed Solution

• Implement stream identifiers and lifecycle management
• Enable interleaved frames for multiple streams
• Handle stream state transitions per RFC 7540

Code Example

server.openStream(streamId = 1)
server.openStream(streamId = 3)
server.sendFrameToStream(streamId = 1, ...)

Alternatives Considered

• Sequential stream processing (HTTP/1.x model)

Additional Context

• Would this be a breaking change? Yes
• Priority: High
• Related to HTTP2 support #3 HTTP2 support

Related Issues/PRs

• HTTP2 support #3 HTTP2 support