Add repo health check agentic workflows

.github/aw/actions-lock.json

@@ -0,0 +1,14 @@
+{
+  "entries": {
+    "actions/github-script@v8": {
+      "repo": "actions/github-script",
+      "version": "v8",
+      "sha": "ed597411d8f924073f98dfc5c65a23a2325f34cd"
+    },
+    "github/gh-aw/actions/setup@v0.45.4": {
+      "repo": "github/gh-aw/actions/setup",
+      "version": "v0.45.4",
+      "sha": "ac090214a48a1938f7abafe132460b66752261af"
+    }
+  }
+}

.github/health-baseline.md

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+# Repo Health — Known Baseline
+
+> Last updated: 2026-03-06
+> Next review: 2026-04-05
+>
+> Items listed here are known and accepted by the team. The health check
+> workflow will classify these as "baselined" rather than "new" findings.
+
+## Baselined Issues
+
+| # | Title | Reason | Baselined |
+|---|-------|--------|-----------|
+| #5805 | MKLImports PDB not included with packages | Known packaging tech debt (P0, open since 2021) | 2026-03-06 |
+| #7447 | Legacy images need to be updated | Tracked infra work (P1) | 2026-03-06 |
+| #6588 | Error for linux-arm/arm64 processor targets | Known platform limitation (P1, open since 2023) | 2026-03-06 |
+| #6370 | Exposing the tree for multiclass classification | Feature request backlog (P1, open since 2022) | 2026-03-06 |
+| #6353 | CreateEnumerable fails in VS FSI but works in notebook | Known environment issue (P1, open since 2022) | 2026-03-06 |
+| #5798 | Add substitutes for IntelMKL methods for non-x86/x64 | Known platform tech debt (P1, open since 2021) | 2026-03-06 |
+| #5744 | Memory leak | Known tech debt (P1, open since 2021) | 2026-03-06 |
+| #5587 | Migrate to VSTest for all Unit Tests | Tracked migration work (P1, open since 2021) | 2026-03-06 |
+| #5569 | OMP Error #15 in Image Classification with AutoML | Known OMP conflict (P1, open since 2020) | 2026-03-06 |
+| #5566 | SVMLightLoader fails above 128 dense rows | Known loader limitation (P1, open since 2020) | 2026-03-06 |
+| #4210 | TensorFlow scoring sample should pass empty dataview | Known sample issue (P1, open since 2019) | 2026-03-06 |
+| #4145 | mlnet generated projects don't include cs files | Known CLI tooling issue (P1, open since 2019) | 2026-03-06 |
+| #3988 | CustomMappingEstimator save/load issues | Known serialization limitation (P1, open since 2019) | 2026-03-06 |
+| #3766 | GetFeatureWeights categorical splits support | Feature gap (P1, open since 2019) | 2026-03-06 |
+| #3701 | How to inspect OneVersusAll models | API gap (P1, open since 2019) | 2026-03-06 |
+| #3684 | AutoML: Allow serialized IDataView input | Feature request (P1, open since 2019) | 2026-03-06 |
+| #2774 | OneHotEncoding Bin mode wrong dimension | Known bug (P1, open since 2019) | 2026-03-06 |
+| #2467 | OvaModelParameters not strongly-typed | API design debt (P1, open since 2019) | 2026-03-06 |
+| #2185 | KeyToVectorMappingEstimator schema conditions | Known bug (P1, open since 2019) | 2026-03-06 |
+| #2167 | GAM Trainer models depend on feature flocks | Known design issue (P1, open since 2019) | 2026-03-06 |
+| #1990 | Vector length 0 as missing value is problematic | Known data type issue (P1, open since 2019) | 2026-03-06 |
+| #1004 | Consistency issue with LdaTransform | Known transform bug (P1, open since 2018) | 2026-03-06 |
+| #765 | Add Reshape Transform | Feature request (P1, open since 2018) | 2026-03-06 |
+| #590 | Cannot combine OneVersusAll with FFMM | Known trainer limitation (P1, open since 2018) | 2026-03-06 |
+
+## Baselined PRs
+
+| # | Title | Reason | Baselined |
+|---|-------|--------|-----------|
+| #7416 | Update TorchSharp to 0.105.0 | Dependency update in progress (open since Mar 2025) | 2026-03-06 |
+| #7406 | [GenAI] Use BitsAndBytes for 4bit quantization | Feature work in progress (open since Mar 2025) | 2026-03-06 |
+| #7094 | Add support for Apache.Arrow.Types.Decimal128Type | Community contribution awaiting review (open since Mar 2024) | 2026-03-06 |
+| #6749 | Update Projects to .NET 8 in MLNET 4.0 Branch | Long-running migration (open since Jun 2023) | 2026-03-06 |
+| #6664 | (WIP) Generic DataFrame Math | Work in progress (open since May 2023) | 2026-03-06 |
+| #6449 | Add DataViewSchema overloads to ConvertToOnnx | Community contribution awaiting review (open since Nov 2022) | 2026-03-06 |
+
+## Baselined Pipeline Failures
+
+| Pipeline | Failure | Reason | Baselined |
+|----------|---------|--------|-----------|
+| *(none detected — AzDO pipeline status requires PAT to query)* | — | Check after first run with AZDO_PAT configured | 2026-03-06 |
+
+## Review Policy
+
+- Re-evaluate this file every 30 days
+- Remove items when they are resolved
+- Add date when baselining new items
+- If an item has been baselined > 90 days, escalate it