fix(core,webapp): coerce numeric concurrencyKey to string #6716

Job	Run time
Detect changes	5s
typecheck / typecheck	2m 22s
sdk-compat / Cloudflare Workers	2m 14s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	2m 11s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	2m 13s
sdk-compat / Node.js 20.20 (ubuntu-latest)	2m 8s
sdk-compat / Bun Runtime	2m 19s
sdk-compat / Deno Runtime	2m 3s
webapp / 🧪 Unit Tests: Webapp (2, 8)	2m 22s
packages / 🧪 Unit Tests: Packages (1, 1)	2m 19s
e2e-webapp / 🧪 E2E Tests: Webapp	2m 22s
internal / 🧪 Unit Tests: Internal (2, 8)	2m 20s
sdk-compat / Node.js 22.12 (ubuntu-latest)	2m 12s
webapp / 🧪 Unit Tests: Webapp (6, 8)	2m 22s
webapp / 🧪 Unit Tests: Webapp (1, 8)	2m 20s
internal / 🧪 Unit Tests: Internal (6, 8)	2m 21s
internal / 🧪 Unit Tests: Internal (3, 8)	2m 20s
webapp / 🧪 Unit Tests: Webapp (4, 8)	2m 19s
internal / 🧪 Unit Tests: Internal (7, 8)	2m 21s
internal / 🧪 Unit Tests: Internal (5, 8)	2m 20s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	1m 51s
webapp / 🧪 Unit Tests: Webapp (3, 8)	2m 21s
webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 21s
internal / 🧪 Unit Tests: Internal (8, 8)	2m 20s
internal / 🧪 Unit Tests: Internal (1, 8)	2m 20s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	1m 59s
webapp / 🧪 Unit Tests: Webapp (7, 8)	2m 21s
webapp / 🧪 Unit Tests: Webapp (5, 8)	2m 21s
internal / 🧪 Unit Tests: Internal (4, 8)	2m 20s
packages / 📊 Merge Reports	1s
internal / 📊 Merge Reports	1s
All PR Checks	4s
webapp / 📊 Merge Reports	1s
	1h 3m 54s

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