Sanity test for UI (#167)

* add base structure

* add ci cache

* refactor pr workflow

* add demo trace run

* refactor CI

* remove hardcoded fallback aws profile

* improve parseTrace types

* test trace

* add a fake profile

* typo

* remove tricky test

* move tests into meaningful function names

* remove useless utils

* extract EVENT_TYPES from html

* extract buildWorkerSpans from html

* extract attatchCpuSamples

* remove remaining functions from index & new file to trace_analysis

* revert gitignore

* add test for trace analysis and CI

* ignore 255 for targetWorker (unknown)

* add .gz.bin fallback

* fix: writer_encoder bench failing to write file (#168)

* fix writer_encoder

* formater

* breaking: Cleanup public interfaces (#129)

* Cleanup public interface

- Add `analysis` feature gate for trace analysis code
- Create `analysis_unstable` module with re-exports
- Make internal modules pub(crate): telemetry submodules, traced, 
  background_task/connection, background_task/instance_metadata
- Flatten public re-exports in telemetry/mod.rs
- Update TraceReader: replace iterator API with all_events/runtime_events fields
- Clean up CircuitBreaker: remove public helpers, add PartialEq/Eq
- Feature-gate decode_ref and decode helpers behind analysis|test
- Clean up dial9-trace-format visibility: codec internals pub(crate),
  leb128 pub(crate), add module/struct docs
- Update dial9-trace-format tests to use Encoder API instead of raw codec
- Make USER_ADDR_LIMIT pub(crate) in perf-self-profile
- Update all examples, tests, and benches to use new import paths

* fix: use text block for InstanceIdentity doctest (module is pub(crate))

* fix: add unit test for InstanceIdentity::new to replace doctest

* fix: make InstanceIdentity pub(crate), remove unused new()

* Merge main into pr/public-interfaces

Resolve conflicts in 5 files:
- README.md: combine --features analysis flag with .bin.gz paths
- traced.rs: use sealed path (trace.0.bin) with new TraceReader API
- echo_server.rs: use sealed path with new TraceReader API
- end_to_end.rs: use sealed path with new TraceReader API
- js_parser.rs: use sealed path with new TraceReader API

* fix: post-merge cleanup

- Replace private `codec::encode_header` with `Encoder::new().finish()`
  in threadlocal_encode bench
- Add `#[allow(private_bounds)]` to S3Config (InstanceIdentity is
  pub(crate) but builder setter must remain accessible for tests)
- cargo fmt: fix import ordering in 4 files

* fix: make InstanceIdentity pub again

The type is used in S3Config's public builder, so it needs to be pub.
Removes the #[allow(private_bounds)] workaround.

* Merge origin/main into pr/public-interfaces

* fix: gate TelemetryEventRef and StringPool import behind analysis|test

CI runs clippy without --all-features, so these are dead code
when the analysis feature is disabled.

* fix: gate TelemetryEvent import behind analysis|test

* PR feedback

* Fix doc tests: update cpu_profile import path in README, fix analysis_unstable example

* pr comments

---------

Co-authored-by: fmzbl <facu@fmzbl.com>
Co-authored-by: Russell Cohen <rcoh@amazon.com>

Author: 3 people

.github/workflows/e2e-trace-integrity-and-analysis.yml

@@ -0,0 +1,25 @@
+name: Trace Integrity & Analysis
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  trace-integrity-and-analysis:
+    name: Trace Integrity & Analysis
+    runs-on: ubuntu-latest
+    services:
+      dynamodb-local:
+        image: amazon/dynamodb-local
+        ports:
+          - 8000:8000
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+      - name: E2E trace tests
+        run: scripts/e2e-trace-tests.sh