refactor(memory): delete dead sidecar infrastructure and HardScope plumbing

src/Netclaw.Actors.Tests/Channels/SlackFileFlowIntegrationTests.cs

@@ -66,7 +66,6 @@ protected override void ConfigureServices(HostBuilderContext context, IServiceCo
             {
                 SnapshotInterval = 5,
                 TitleGenerationInterval = 0,
-                MemorySidecarsEnabled = false,
             }
         });
         services.AddSingleton<ISystemPromptProvider>(new StaticSystemPromptProvider(

src/Netclaw.Actors.Tests/Channels/SlackThreadBackfillIntegrationTests.cs

@@ -63,7 +63,6 @@ protected override void ConfigureServices(HostBuilderContext context, IServiceCo
             {
                 SnapshotInterval = 5,
                 TitleGenerationInterval = 0,
-                MemorySidecarsEnabled = false,
             }
         });
         services.AddSingleton<ISystemPromptProvider>(new StaticSystemPromptProvider(

src/Netclaw.Actors.Tests/Memory/MemoryEvalSeedSuiteTests.cs

@@ -46,7 +46,7 @@ await _store.UpsertDocumentAsync(new SQLiteMemoryDocument(
             CreatedAtMs: now,
             UpdatedAtMs: now), TestContext.Current.CancellationToken);
 
-        var coordinator = new SQLiteMemoryRecallCoordinator(_store, NullLogger<SQLiteMemoryRecallCoordinator>.Instance, sessionTuning: new SessionTuning { MemorySidecarsEnabled = true });
+        var coordinator = new SQLiteMemoryRecallCoordinator(_store, NullLogger<SQLiteMemoryRecallCoordinator>.Instance, sessionTuning: new SessionTuning());
         var result = await coordinator.RecallAsync(new AutomaticRecallRequest(
             SessionId: "ops/thread-1",
             Query: "router failover",
@@ -84,7 +84,7 @@ await _store.UpsertDocumentAsync(new SQLiteMemoryDocument(
             CreatedAtMs: now,
             UpdatedAtMs: now), TestContext.Current.CancellationToken);
 
-        var coordinator = new SQLiteMemoryRecallCoordinator(_store, NullLogger<SQLiteMemoryRecallCoordinator>.Instance, sessionTuning: new SessionTuning { MemorySidecarsEnabled = true });
+        var coordinator = new SQLiteMemoryRecallCoordinator(_store, NullLogger<SQLiteMemoryRecallCoordinator>.Instance, sessionTuning: new SessionTuning());
         var result = await coordinator.RecallAsync(new AutomaticRecallRequest(
             SessionId: "ops/thread-1",
             Query: "token",
@@ -314,7 +314,7 @@ await _store.UpsertDocumentAsync(new SQLiteMemoryDocument(
                 UpdatedAtMs: now), TestContext.Current.CancellationToken);
         }
 
-        var coordinator = new SQLiteMemoryRecallCoordinator(_store, NullLogger<SQLiteMemoryRecallCoordinator>.Instance, sessionTuning: new SessionTuning { MemorySidecarsEnabled = true });
+        var coordinator = new SQLiteMemoryRecallCoordinator(_store, NullLogger<SQLiteMemoryRecallCoordinator>.Instance, sessionTuning: new SessionTuning());
         var start = TimeProvider.System.GetTimestamp();
         var result = await coordinator.RecallAsync(new AutomaticRecallRequest(
             SessionId: "latency/thread-1",

src/Netclaw.Actors.Tests/Memory/MemoryPolicyGatesTests.cs

@@ -285,7 +285,6 @@ public void RecallPlanGate_forces_automatic_mode_to_durable_fact_only()
         var gate = new RecallPlanGate();
         var request = new RecallPlanningRequest(
             "slack/thread",
-            "project:slack",
             "automatic",
             "What hotel should I stay in there",
             ["I am speaking at Stir Trek in Ohio"],

src/Netclaw.Actors.Tests/Memory/MemoryRedesignedEvalSuiteTests.cs

@@ -60,7 +60,7 @@ public async Task Formation_then_auto_recall_surfaces_durable_fact()
         var recall = new SQLiteMemoryRecallCoordinator(
             _store,
             NullLogger<SQLiteMemoryRecallCoordinator>.Instance,
-            sessionTuning: new SessionTuning { MemorySidecarsEnabled = true });
+            sessionTuning: new SessionTuning());
 
         var result = await recall.RecallAsync(new AutomaticRecallRequest(
             "slack/thread-1",
@@ -122,14 +122,13 @@ public async Task Formation_then_recall_surfaces_travel_origin_and_persists_meta
         var recall = new SQLiteMemoryRecallCoordinator(
             _store,
             NullLogger<SQLiteMemoryRecallCoordinator>.Instance,
-            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true, MemorySidecarsEnabled = false });
+            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true });
 
         var result = await recall.RecallAsync(new AutomaticRecallRequest(
             "signalr/thread-iah",
             "What airport do I usually fly out of?",
             ["What airport do I usually fly out of?"],
             3,
-            HardScopeOverride: "user:aaron",
             ThreadTitle: "Travel preferences"), TestContext.Current.CancellationToken);
 
         Assert.False(result.Degraded);
@@ -185,14 +184,13 @@ public async Task Formation_then_recall_surfaces_preferred_airline_and_persists_
         var recall = new SQLiteMemoryRecallCoordinator(
             _store,
             NullLogger<SQLiteMemoryRecallCoordinator>.Instance,
-            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true, MemorySidecarsEnabled = false });
+            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true });
 
         var result = await recall.RecallAsync(new AutomaticRecallRequest(
             "signalr/thread-united",
             "What airline do I usually take?",
             ["What airline do I usually take?"],
             3,
-            HardScopeOverride: "user:aaron",
             ThreadTitle: "Travel preferences"), TestContext.Current.CancellationToken);
 
         Assert.False(result.Degraded);
@@ -256,7 +254,7 @@ await _store.ApplyCurationBatchAsync(
         var recall = new SQLiteMemoryRecallCoordinator(
             _store,
             NullLogger<SQLiteMemoryRecallCoordinator>.Instance,
-            sessionTuning: new SessionTuning { MemorySidecarsEnabled = true });
+            sessionTuning: new SessionTuning());
 
         var auto = await recall.RecallAsync(new AutomaticRecallRequest(
             "slack/thread-2",
@@ -407,7 +405,7 @@ public async Task Soul_boundary_keeps_project_facts_in_sqlite_memory()
         now);
 
         await _store.ApplyCurationBatchAsync("cp-eval-3", accepted, CancellationToken.None);
-        var items = await _store.SearchByPlanAsync(["deploys", "east-2"], "project:ops", ["durable_fact"], 5, SecurityPolicyDefaults.InferLegacyBoundaryFromDomain("project:ops"), TrustAudience.Public, false, TestContext.Current.CancellationToken);
+        var items = await _store.SearchAcrossDomainsByPlanAsync(["deploys", "east-2"], ["durable_fact"], 5, SecurityPolicyDefaults.TrustedInstanceBoundary, TrustAudience.Public, false, TestContext.Current.CancellationToken);
 
         Assert.Single(items);
         Assert.Equal("Deployment region", items[0].Title);
@@ -479,7 +477,7 @@ public async Task Eval_reporting_thresholds_meet_smoke_targets_for_current_fixtu
         var recall = new SQLiteMemoryRecallCoordinator(
             _store,
             NullLogger<SQLiteMemoryRecallCoordinator>.Instance,
-            sessionTuning: new SessionTuning { MemorySidecarsEnabled = true });
+            sessionTuning: new SessionTuning());
 
         var acceptedFact = proposalGate.Accept(
         [

src/Netclaw.Actors.Tests/Memory/SQLiteMemoryStoreTests.cs

@@ -261,21 +261,19 @@ await _store.UpsertDocumentAsync(new SQLiteMemoryDocument(
             UpdatedAtMs: now,
             Audience: TrustAudience.Personal.ToWireValue()), TestContext.Current.CancellationToken);
 
-        var publicResults = await _store.SearchByPlanAsync(
+        var publicResults = await _store.SearchAcrossDomainsByPlanAsync(
             ["visible"],
-            "project:test",
             [MemoryClass.DurableFact.ToWireValue()],
             10,
-            SecurityPolicyDefaults.InferLegacyBoundaryFromDomain("project:test"),
+            SecurityPolicyDefaults.TrustedInstanceBoundary,
             TrustAudience.Public,
             false, TestContext.Current.CancellationToken);
 
-        var personalResults = await _store.SearchByPlanAsync(
+        var personalResults = await _store.SearchAcrossDomainsByPlanAsync(
             ["visible"],
-            "project:test",
             [MemoryClass.DurableFact.ToWireValue()],
             10,
-            SecurityPolicyDefaults.InferLegacyBoundaryFromDomain("project:test"),
+            SecurityPolicyDefaults.TrustedInstanceBoundary,
             TrustAudience.Personal,
             false, TestContext.Current.CancellationToken);
 

src/Netclaw.Actors.Tests/Sessions/CompactionIntegrationTests.cs

@@ -49,7 +49,6 @@ protected override void ConfigureServices(HostBuilderContext context, IServiceCo
                 KeepRecentToolResults = 1,
                 KeepRecentMessages = 0,
                 TitleGenerationInterval = 0,
-                MemorySidecarsEnabled = false,
             }
         });
         services.AddSingleton<ISystemPromptProvider>(new StaticSystemPromptProvider(

src/Netclaw.Actors.Tests/Sessions/DeterministicCandidateSelectorTests.cs

@@ -7,12 +7,10 @@ namespace Netclaw.Actors.Tests.Sessions;
 public sealed class DeterministicCandidateSelectorTests
 {
     private static DeterministicRetrievalRequestPlan MakePlan(
-        string hardScope = "project:d0ac6ckbk5k",
         IReadOnlyList<string>? lexicalTerms = null,
         IReadOnlyList<string>? anchorHints = null,
         IReadOnlyList<string>? facets = null,
         IReadOnlyList<string>? softScopes = null) => new(
-        HardScope: hardScope,
         SoftScopes: softScopes ?? [],
         RetrievalMode: DeterministicRetrievalMode.Ranked,
         LexicalTerms: lexicalTerms ?? [],
@@ -99,7 +97,6 @@ public void Domain_is_not_a_scoring_signal()
         // must score identically. Tracked in #584.
         var selector = new DeterministicCandidateSelector();
         var plan = MakePlan(
-            hardScope: "project:d0ac6ckbk5k",
             lexicalTerms: ["petabridge"]);
 
         var sameDomain = MakeItem("doc-same", "Company: Petabridge", "Petabridge builds Akka.NET.", domain: "project:d0ac6ckbk5k");
@@ -116,7 +113,6 @@ public void Cross_domain_candidate_not_excluded()
     {
         var selector = new DeterministicCandidateSelector();
         var plan = MakePlan(
-            hardScope: "project:d0ac6ckbk5k",
             lexicalTerms: ["petabridge"]);
 
         var crossDomain = MakeItem("doc-cross", "Company: Petabridge", "Petabridge builds Akka.NET.", domain: "project:signalr");
@@ -155,8 +151,7 @@ public void Score_geometry_stronger_matches_outrank_weaker_matches()
     {
         var selector = new DeterministicCandidateSelector();
         var plan = MakePlan(
-            lexicalTerms: ["akka", "stream", "backpressure", "demand"],
-            hardScope: "project:d0ac6ckbk5k");
+            lexicalTerms: ["akka", "stream", "backpressure", "demand"]);
 
         var weak = MakeItem(
             "doc-weak",
@@ -196,8 +191,7 @@ public void Score_geometry_facet_match_adds_meaningful_weight()
         var selector = new DeterministicCandidateSelector();
         var plan = MakePlan(
             lexicalTerms: ["stream"],
-            facets: ["akka-streams"],
-            hardScope: "project:other");
+            facets: ["akka-streams"]);
 
         var withoutFacet = MakeItem(
             "doc-no-facet",
@@ -237,8 +231,7 @@ public void Score_geometry_anchor_match_adds_meaningful_weight()
         var selector = new DeterministicCandidateSelector();
         var plan = MakePlan(
             lexicalTerms: ["stream"],
-            anchorHints: ["Akka Stream Backpressure"],
-            hardScope: "project:other");
+            anchorHints: ["Akka Stream Backpressure"]);
 
         var noAnchor = MakeItem(
             "doc-no-anchor",

src/Netclaw.Actors.Tests/Sessions/DeterministicRetrievalPlanningTests.cs

@@ -17,10 +17,8 @@ public void Planner_uses_runtime_hard_scope_and_bundle_mode_for_trip_prompt()
             Query: "I'm speaking at Stir Trek 2026 - I fly out of IAH. What's the best flight / hotel combination for me?",
             RecentUserMessages: ["I'm speaking at Stir Trek 2026 - I fly out of IAH. What's the best flight / hotel combination for me?"],
             MaxItems: 3,
-            HardScopeOverride: "user:aaron",
             ThreadTitle: "Stir Trek 2026 travel planning"));
 
-        Assert.Equal("user:aaron", plan.HardScope);
         Assert.Equal(DeterministicRetrievalMode.Bundle, plan.RetrievalMode);
         Assert.Contains("travel_profile", plan.Facets);
         Assert.Contains("trip_planning", plan.Facets);
@@ -36,28 +34,13 @@ public void Planner_prefers_named_entity_soft_scope_for_project_prompt()
             Query: "What's the pricing model for TextForge?",
             RecentUserMessages: ["What's the pricing model for TextForge?"],
             MaxItems: 3,
-            HardScopeOverride: "user:aaron",
             ThreadTitle: "General DM"));
 
-        Assert.Equal("user:aaron", plan.HardScope);
         Assert.Equal(DeterministicRetrievalMode.Ranked, plan.RetrievalMode);
         Assert.Contains("project_fact", plan.Facets);
         Assert.Contains(plan.AnchorHints, x => x.Contains("TextForge", StringComparison.OrdinalIgnoreCase) || x.Contains("textforge", StringComparison.OrdinalIgnoreCase));
     }
 
-    [Fact]
-    public void Planner_does_not_turn_transport_session_prefix_into_project_scope()
-    {
-        var planner = new DeterministicRetrievalRequestPlanner();
-        var plan = planner.Plan(new AutomaticRecallRequest(
-            SessionId: "signalr/thread-transport",
-            Query: "what is TextForge",
-            RecentUserMessages: ["what is TextForge"],
-            MaxItems: 3));
-
-        Assert.Equal(SecurityPolicyDefaults.DefaultMemoryDomain, plan.HardScope);
-    }
-
     [Fact]
     public async Task Coordinator_keeps_stage_empty_when_deterministic_planning_succeeds_but_sidecars_are_disabled()
     {
@@ -69,14 +52,13 @@ public async Task Coordinator_keeps_stage_empty_when_deterministic_planning_succ
         var coordinator = new SQLiteMemoryRecallCoordinator(
             store,
             NullLogger<SQLiteMemoryRecallCoordinator>.Instance,
-            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true, MemorySidecarsEnabled = false });
+            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true });
 
         var result = await coordinator.RecallAsync(new AutomaticRecallRequest(
             SessionId: "signalr/thread-3",
             Query: "What's the pricing model for TextForge?",
             RecentUserMessages: ["What's the pricing model for TextForge?"],
             MaxItems: 3,
-            HardScopeOverride: "user:aaron",
             ThreadTitle: "General DM"), TestContext.Current.CancellationToken);
 
         Assert.False(result.Degraded);
@@ -116,14 +98,13 @@ await store.UpsertDocumentAsync(new SQLiteMemoryDocument(
         var coordinator = new SQLiteMemoryRecallCoordinator(
             store,
             NullLogger<SQLiteMemoryRecallCoordinator>.Instance,
-            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true, MemorySidecarsEnabled = false });
+            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true });
 
         var result = await coordinator.RecallAsync(new AutomaticRecallRequest(
             SessionId: "signalr/thread-4",
             Query: "What's the pricing model for TextForge?",
             RecentUserMessages: ["What's the pricing model for TextForge?"],
             MaxItems: 3,
-            HardScopeOverride: "user:aaron",
             ThreadTitle: "Product planning"), TestContext.Current.CancellationToken);
 
         Assert.False(result.Degraded);
@@ -163,14 +144,13 @@ await store.UpsertDocumentAsync(new SQLiteMemoryDocument(
         var coordinator = new SQLiteMemoryRecallCoordinator(
             store,
             NullLogger<SQLiteMemoryRecallCoordinator>.Instance,
-            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true, MemorySidecarsEnabled = false });
+            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true });
 
         var result = await coordinator.RecallAsync(new AutomaticRecallRequest(
             SessionId: "signalr/thread-score",
             Query: "What's the pricing model for TextForge?",
             RecentUserMessages: ["What's the pricing model for TextForge?"],
             MaxItems: 3,
-            HardScopeOverride: "user:aaron",
             ThreadTitle: "Product planning"), TestContext.Current.CancellationToken);
 
         var item = Assert.Single(result.Items, x => x.Id == "doc-textforge-pricing-score");
@@ -190,8 +170,7 @@ public void Planner_caps_lexical_terms_for_long_messages()
             SessionId: "signalr/thread-long",
             Query: longMessage,
             RecentUserMessages: [longMessage],
-            MaxItems: 3,
-            HardScopeOverride: "user:aaron"));
+            MaxItems: 3));
 
         Assert.True(plan.LexicalTerms.Count <= 12,
             $"Expected at most 12 lexical terms but got {plan.LexicalTerms.Count}: [{string.Join(", ", plan.LexicalTerms)}]");
@@ -244,7 +223,7 @@ await store.UpsertDocumentAsync(new SQLiteMemoryDocument(
         var coordinator = new SQLiteMemoryRecallCoordinator(
             store,
             NullLogger<SQLiteMemoryRecallCoordinator>.Instance,
-            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true, MemorySidecarsEnabled = false });
+            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true });
 
         var result = await coordinator.RecallAsync(new AutomaticRecallRequest(
             SessionId: "D0AC6CKBK5K/1774371415.126439",
@@ -290,7 +269,7 @@ await store.UpsertDocumentAsync(new SQLiteMemoryDocument(
         var coordinator = new SQLiteMemoryRecallCoordinator(
             store,
             NullLogger<SQLiteMemoryRecallCoordinator>.Instance,
-            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true, MemorySidecarsEnabled = false });
+            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true });
 
         // Query from a different domain (project:d0ac6ckbk5k — Slack DM)
         var result = await coordinator.RecallAsync(new AutomaticRecallRequest(
@@ -336,7 +315,7 @@ await store.UpsertDocumentAsync(new SQLiteMemoryDocument(
         var coordinator = new SQLiteMemoryRecallCoordinator(
             store,
             NullLogger<SQLiteMemoryRecallCoordinator>.Instance,
-            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true, MemorySidecarsEnabled = false });
+            sessionTuning: new SessionTuning { DeterministicRetrievalEnabled = true });
 
         var result = await coordinator.RecallAsync(new AutomaticRecallRequest(
             SessionId: "signalr/thread-5",

src/Netclaw.Actors.Tests/Sessions/ErrorCorrelationTests.cs

@@ -42,7 +42,6 @@ protected override void ConfigureServices(HostBuilderContext context, IServiceCo
             {
                 SnapshotInterval = 5,
                 TitleGenerationInterval = 0,
-                MemorySidecarsEnabled = false,
             }
         });
         services.AddSingleton<ISystemPromptProvider>(new StaticSystemPromptProvider("You are a test assistant."));