feat(sdk): chat.agent — runtime + browser transport (2/4) #6108

Job	Run time
Detect changes	5s
typecheck / typecheck	7m 10s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	1m 58s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	2m 8s
e2e-webapp / 🧪 E2E Tests: Webapp	3m 18s
sdk-compat / Deno Runtime	2m 3s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	4m 0s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	4m 3s
sdk-compat / Cloudflare Workers	2m 24s
packages / 🧪 Unit Tests: Packages (1, 1)	8m 51s
sdk-compat / Node.js 20.20 (ubuntu-latest)	2m 8s
sdk-compat / Node.js 22.12 (ubuntu-latest)	2m 12s
internal / 🧪 Unit Tests: Internal (1, 8)	6m 57s
internal / 🧪 Unit Tests: Internal (3, 8)	8m 54s
internal / 🧪 Unit Tests: Internal (7, 8)	6m 22s
internal / 🧪 Unit Tests: Internal (2, 8)	13m 42s
internal / 🧪 Unit Tests: Internal (8, 8)	2m 45s
sdk-compat / Bun Runtime	2m 17s
internal / 🧪 Unit Tests: Internal (4, 8)	6m 34s
webapp / 🧪 Unit Tests: Webapp (2, 8)	4m 11s
webapp / 🧪 Unit Tests: Webapp (5, 8)	4m 46s
internal / 🧪 Unit Tests: Internal (5, 8)	5m 42s
internal / 🧪 Unit Tests: Internal (6, 8)	6m 39s
webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 52s
webapp / 🧪 Unit Tests: Webapp (1, 8)	6m 24s
webapp / 🧪 Unit Tests: Webapp (6, 8)	8m 43s
webapp / 🧪 Unit Tests: Webapp (4, 8)	7m 6s
webapp / 🧪 Unit Tests: Webapp (3, 8)	3m 48s
webapp / 🧪 Unit Tests: Webapp (7, 8)	7m 2s
webapp / 📊 Merge Reports	44s
packages / 📊 Merge Reports	21s
internal / 📊 Merge Reports	30s
All PR Checks	4s
	2h 26m 43s

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