Remove run source tree from browser repo

docs/local-debug-workspace.md

@@ -6,7 +6,7 @@ The local debug workspace runs the real platform API, run worker, platform_web c
 
 - Platform listens on `http://127.0.0.1:18080` by default.
 - platform_web listens on `http://127.0.0.1:5173` by default and proxies `/api/v1` plus `/healthz` to platform.
-- Run worker registers as `run-local-debug`.
+- Run worker is loaded from `RUN_REPO_DIR`, defaulting to a sibling `../run` checkout, and registers as `run-local-debug`.
 - Disposable state lives under `.local-debug/`.
 - Logs live under `.local-debug/logs/`.
 - PIDs live under `.local-debug/pids/`.
@@ -18,6 +18,7 @@ The workflow does not require Docker-only infrastructure, external cloud service
 ## Start
 
 ```bash
+git clone git@git.npc0.com:admin343/run.git ../run # once, if the sibling checkout is missing
 scripts/local-debug-start.sh
 ```
 
@@ -48,6 +49,7 @@ Key platform variables:
 
 Key run variables:
 
+- `RUN_REPO_DIR=../run`
 - `RUN_MODE=worker`
 - `RUN_PLATFORM_URL=http://127.0.0.1:18080`
 - `RUN_ENDPOINT_ID=run-local-debug`
@@ -159,8 +161,8 @@ The reset script refuses unexpected roots. It allows only:
 The start script wraps these commands with the local debug environment:
 
 ```bash
-go run ./platform/cmd/platform
-go run ./run/cmd/run
+(cd platform && go run ./cmd/platform)
+(cd "${RUN_REPO_DIR:-../run}" && go run ./cmd/run)
 npm --prefix platform_web run dev -- --port 5173
 ```