feat(cdp): add 'event' and 'close' events to CDPSession

[yury-s]

• 'event' fires for every CDP event with { name, params? }, allowing subscriptions to all CDP events without knowing names ahead of time
• 'close' fires when the session is detached or the target closes

[github-actions]

Test results for "tests 1"

1 failed
❌ [playwright-test] › reporter-line.spec.ts:193 › merged › should show error context with relative path @macos-latest-node20

4 flaky

⚠️ [chromium-library] › library/popup.spec.ts:260 › should not throw when click closes popup `@chromium-ubuntu-22.04-node22`
⚠️ [firefox-library] › library/inspector/cli-codegen-1.spec.ts:1080 › cli codegen › should not throw csp directive violation errors `@firefox-ubuntu-22.04-node20`
⚠️ [webkit-library] › library/trace-viewer.spec.ts:1216 › should display language-specific locators `@webkit-ubuntu-22.04-node20`
⚠️ [playwright-test] › ui-mode-trace.spec.ts:433 › should work behind reverse proxy `@macos-latest-node20`

38379 passed, 797 skipped

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Merge workflow run.

[github-actions]

Test results for "MCP"

6 failed
❌ [chrome] › mcp/cli-session.spec.ts:126 › session reopen with different config @mcp-macos-15
❌ [chromium] › mcp/cli-session.spec.ts:126 › session reopen with different config @mcp-macos-15
❌ [firefox] › mcp/cli-session.spec.ts:126 › session reopen with different config @mcp-macos-15
❌ [firefox] › mcp/http.spec.ts:207 › http transport browser lifecycle (persistent) @mcp-macos-15
❌ [webkit] › mcp/cli-session.spec.ts:126 › session reopen with different config @mcp-macos-15
❌ [webkit] › mcp/http.spec.ts:207 › http transport browser lifecycle (persistent) @mcp-macos-15

5085 passed, 161 skipped

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Merge workflow run.