Refactor NuGet package handling across multiple CI runners and documentation. Update paths to use .nuget/packages instead of local-nugets. Enhance README files for clarity on usage and environment setup. Add script to automate the addition of test projects to the solution.

src/Authority/__Libraries/StellaOps.Authority.Storage.Postgres/AGENTS.md

@@ -17,7 +17,7 @@ Deliver PostgreSQL-backed persistence for Authority (tenants, users, roles, perm
 
 ## Working Agreement
 - Update related sprint rows in `docs/implplan/SPRINT_*.md` when work starts/finishes; keep statuses `TODO → DOING → DONE/BLOCKED`.
-- Keep migrations idempotent and deterministic (stable ordering, UTC timestamps). Use curated NuGet cache at `local-nugets/`; no external feeds.
+- Keep migrations idempotent and deterministic (stable ordering, UTC timestamps). Use NuGet cache at `.nuget/packages/`; no external feeds beyond those in `nuget.config`.
 - Align schema and repository contracts to `docs/db/SPECIFICATION.md`; mirror any contract/schema change into that spec and the sprint’s Decisions & Risks.
 - Tests live in `src/Authority/__Tests/StellaOps.Authority.Storage.Postgres.Tests`; maintain deterministic Testcontainers config (fixed image tag, seeded data) and cover all repositories plus determinism of token/refresh generation.
 - Use `StellaOps.Cryptography` abstractions for password/hash handling; never log secrets or hashes. Ensure transaction boundaries and retries follow `docs/db/RULES.md`.

src/Concelier/Directory.Build.props

@@ -10,7 +10,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.0.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
     <PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" Version="10.0.0" />
     <ProjectReference Include="$(MSBuildThisFileDirectory)..\__Tests\__Libraries\StellaOps.Concelier.Testing\StellaOps.Concelier.Testing.csproj"
                       Condition="Exists('$(MSBuildThisFileDirectory)..\__Tests\__Libraries\StellaOps.Concelier.Testing\StellaOps.Concelier.Testing.csproj')" />

src/ExportCenter/AGENTS.md

@@ -48,7 +48,7 @@
 - Cross-module changes (Authority/Orchestrator/CLI) only when sprint explicitly covers them; log in Decisions & Risks.
 
 ## Coding & Observability Standards
-- Target **.NET 10** with curated `local-nugets/`; Npgsql driver for PostgreSQL; ORAS/OCI client where applicable.
+- Target **.NET 10**; Npgsql driver for PostgreSQL; ORAS/OCI client where applicable.
 - Metrics under `StellaOps.ExportCenter.*`; tag `tenant`, `profile`, `adapter`, `result`; document new counters/histograms.
 - Logs structured, no PII; include `runId`, `tenant`, `profile`, `adapter`, `correlationId`; map phases (`plan`, `resolve`, `adapter`, `manifest`, `sign`, `distribute`).
 - SSE/telemetry events must be deterministic and replay-safe; backpressure aware.

src/Graph/AGENTS.md

@@ -24,7 +24,7 @@
 - Default to deterministic ordering for streams/exports; manifest checksums required for `graphml/csv/ndjson` exports.
 - Timestamps: UTC ISO-8601; avoid wall-clock in tests.
 - Snapshot/export roots configurable via `STELLAOPS_GRAPH_SNAPSHOT_DIR` or `SbomIngestOptions.SnapshotRootDirectory`.
-- Offline posture: no external calls beyond allowlisted feeds; prefer cached schemas and local nugets in `local-nugets/`.
+- Offline posture: no external calls beyond allowlisted feeds; prefer cached schemas in `.nuget/packages/`.
 
 ## Data & Environment
 - Storage is currently in-memory (MongoDB dependency removed); persistent backing store to be added in a follow-up sprint.
@@ -53,7 +53,7 @@
 - If a required contract/doc is missing or stale, mark the affected task BLOCKED in the sprint and log under Decisions & Risks; do not pause work waiting for live answers.
 
 ## Run/Test Commands (examples)
-- Restore: `dotnet restore src/Graph/StellaOps.Graph.Api/StellaOps.Graph.Api.csproj --source ../local-nugets`
+- Restore: `dotnet restore src/Graph/StellaOps.Graph.Api/StellaOps.Graph.Api.csproj`
 - Build: `dotnet build src/Graph/StellaOps.Graph.Api/StellaOps.Graph.Api.csproj -c Release`
 - Tests: `dotnet test src/Graph/__Tests/StellaOps.Graph.Indexer.Tests/StellaOps.Graph.Indexer.Tests.csproj`
 - Lint/style: follow repo-wide analyzers in `Directory.Build.props` / `.editorconfig`.

src/Notify/AGENTS.md

@@ -13,7 +13,7 @@ Deliver and operate the Notify module across WebService, Worker, and storage lay
 
 ## Working Agreement
 - Update sprint rows in `docs/implplan/SPRINT_*.md` with TODO → DOING → DONE/BLOCKED as work progresses; log blockers in **Decisions & Risks**.
-- Offline/deterministic posture: stable ordering, UTC timestamps, idempotent migrations; use curated NuGet cache `local-nugets/`.
+- Offline/deterministic posture: stable ordering, UTC timestamps, idempotent migrations; use NuGet cache `.nuget/packages/`.
 - Storage: keep schema/tests aligned to `notify` schema; when running tests locally ensure Docker/WSL integration for Testcontainers.
 - Testing: prefer integration suites under `src/Notify/__Tests/StellaOps.Notify.Storage.Postgres.Tests`; add coverage for new repositories or state transitions; keep results under `out/test-results/` when capturing evidence.
 - Cross-module edits require explicit sprint note; otherwise stay within `src/Notify/**` and shared libraries listed in module docs.

src/Notify/__Libraries/StellaOps.Notify.Storage.Postgres/AGENTS.md

@@ -13,7 +13,7 @@ Deliver PostgreSQL-backed persistence for Notify (channels, rules, templates, de
 
 ## Working Agreement
 - Update related sprint rows in `docs/implplan/SPRINT_*.md` when starting/finishing work; keep statuses `TODO → DOING → DONE/BLOCKED`.
-- Follow deterministic/offline posture: stable ordering, UTC timestamps, idempotent migrations; use the curated NuGet cache at `local-nugets/`.
+- Follow deterministic/offline posture: stable ordering, UTC timestamps, idempotent migrations; use NuGet cache at `.nuget/packages/`.
 - Keep schema/migrations aligned with `docs/db/SPECIFICATION.md`; add/extend tests under this project to cover repository contracts against PostgreSQL.
 - Mirror any contract change (schema, repository signatures, DI wiring) into the appropriate docs (`docs/db/SPECIFICATION.md`, module architecture) and note it in sprint Decisions & Risks.
 - Coordinate with `StellaOps.Notify.Engine` and channel connectors for behavioural changes; avoid cross-module edits unless the sprint explicitly allows and logs them.

src/Policy/__Libraries/StellaOps.Policy.AuthSignals/StellaOps.Policy.AuthSignals.csproj

@@ -7,7 +7,7 @@
     <Company>StellaOps</Company>
     <Version>0.1.0-alpha</Version>
     <Description>Shared Policy/Authority/Signals contracts for advisory signals.</Description>
-    <PackageOutputPath>../../../../local-nugets</PackageOutputPath>
+    <PackageOutputPath>../../../../.nuget/packages</PackageOutputPath>
     <IncludeSymbols>false</IncludeSymbols>
     <IncludeSource>false</IncludeSource>
   </PropertyGroup>

src/StellaOps.Tests.sln

@@ -0,0 +1,14 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal