Proxy: Refactor for testability; add SRT/WHIP E2E and unit tests. v7.0.148 (#4675)

- Refactor the Go proxy for dependency injection: every proxy server,
the bootstrap, the signal handler, the load balancers, and AMF0 now accept
functional-option seams (factories/closures) so tests can inject fakes
without binding real sockets, talking to real Redis, or racing on
package globals.

- Drop the package-global `lb.SrsLoadBalancer`. The bootstrap creates
the LB locally and threads it through every proxy server constructor. Two old
global indirections in `internal/signal` and `internal/rtmp/amf0` are
likewise replaced by per-instance fields.

- Rename `internal/server` → `internal/proxy` and rename the `lb` public
surface for clarity: `SRSLoadBalancer` is split into `OriginService` /
`HLSService` / `RTCService` and recomposed as `OriginLoadBalancer`;
`SRSServer` → `OriginServer`; all proxy server types gain a `Proxy`
qualifier (e.g. `RTMPServer` → `RTMPProxyServer`).

- Extract the Redis client behind a new `internal/redisclient` package
with a minimal `RedisClient` interface and a counterfeiter fake.

- Add counterfeiter fakes (`proxyfakes`, `lbfakes`, `redisclientfakes`)
and ~7.5k lines of unit tests covering bootstrap, memory + Redis LBs, all
five proxy servers, the signal handler, and AMF0.

- Add two new E2E flows — `proxy-e2e-srt-test.sh` (SRT publish through
proxy, verify SRT/RTMP/HTTP-FLV/HLS playback) and `proxy-e2e-whip-test.sh`
(WHIP publish, verify RTMP/HTTP-FLV/HLS via origin `rtc_to_rtmp`) — plus
`setup-ffmpeg-with-whip.sh`, a macOS builder for an ffmpeg with
openssl-DTLS WHIP and SRT support that the two scripts auto-invoke when needed.

- Workspace reorg: move `memory/` and `skills/` to the repo root so all
agent tools (Claude / Codex / Kiro / OpenClaw) share one source of truth via
symlinks. Sync `docs/proxy/proxy-load-balancer.md` and
`memory/srs-codebase-map.md` with the new names.

No protocol, log, HTTP API, or wire-format changes. Refactor only — all
  externally observable proxy behavior is unchanged.

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-authored-by: chatgpt-codex-connector[bot] <199175422+chatgpt-codex-connector[bot]@users.noreply.github.com>

Author: 3 people

.claude/memory

@@ -1 +1 @@
-../.openclaw/memory
+../memory

.claude/skills

@@ -1 +1 @@
-../.openclaw/skills
+../skills

.codex/memory

@@ -1 +1 @@
-../.openclaw/memory
+../memory

.codex/skills

@@ -1 +1 @@
-../.openclaw/skills
+../skills

.gitignore

@@ -47,4 +47,9 @@ cmake-build-debug
 
 # For AI
 /*personal*
+/support*
+/*srs-consults*
 /*workspace*
+/skills/llm-switcher
+/skills/*workspace*
+/memory/202*.md

.kiro/memory

@@ -1 +1 @@
-../.openclaw/memory
+../memory

.kiro/skills

@@ -1 +1 @@
-../.openclaw/skills
+../skills

.openclaw/memory

@@ -0,0 +1 @@
+../memory

.openclaw/skills

@@ -0,0 +1 @@
+../skills

docs/proxy/proxy-load-balancer.md

@@ -53,14 +53,14 @@ Both implementations maintain stream-to-server mappings to ensure stream consist
 
 The load balancer uses a clean interface-based architecture:
 
-**Core Interface**: `SRSLoadBalancer`
+**Core Interface**: `OriginLoadBalancer`
 - Initialization and lifecycle management
 - Server registration and updates
 - Stream routing (Pick operation)
 - Protocol-specific state management (HLS, WebRTC)
 
 **Data Models**:
-- `SRSServer`: Backend origin server representation
+- `OriginServer`: Backend origin server representation
 - `HLSPlayStream`: Interface for HLS streaming sessions
 - `RTCConnection`: Interface for WebRTC connections