fix(webapp): fix Redis connection leak in realtime streams and broken abort signal propagation #5405

Job	Run time
typecheck / typecheck	6m 31s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	1m 48s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	4m 2s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	1m 54s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	3m 42s
sdk-compat / Deno Runtime	2m 6s
sdk-compat / Node.js 20.20 (ubuntu-latest)	2m 2s
sdk-compat / Bun Runtime	2m 1s
sdk-compat / Node.js 22.12 (ubuntu-latest)	1m 57s
sdk-compat / Cloudflare Workers	2m 9s
units / packages / 🧪 Unit Tests: Packages (1, 1)	8m 48s
units / internal / 🧪 Unit Tests: Internal (4, 8)	6m 18s
units / internal / 🧪 Unit Tests: Internal (6, 8)	6m 37s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	4m 14s
units / internal / 🧪 Unit Tests: Internal (1, 8)	6m 53s
units / internal / 🧪 Unit Tests: Internal (2, 8)	10m 20s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	5m 47s
units / internal / 🧪 Unit Tests: Internal (7, 8)	5m 37s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	3m 18s
units / internal / 🧪 Unit Tests: Internal (8, 8)	2m 40s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	8m 5s
units / internal / 🧪 Unit Tests: Internal (5, 8)	6m 17s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	6m 5s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	5m 42s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 50s
units / internal / 🧪 Unit Tests: Internal (3, 8)	8m 51s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	4m 35s
units / webapp / 📊 Merge Reports	59s
units / packages / 📊 Merge Reports	27s
units / internal / 📊 Merge Reports	1s
	2h 12m 36s

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