feat(WP-0013): IHF Phase 12 — Platform Memory and Continuous Learning

Closes the long-range feedback loop: outcome signals now enrich the full
traceability chain and feed back into routing, triage, and AI proposals.

Schema (T01):
- outcome_correlations (CHECK correlation_type)
- pattern_performance_records
- adaptive_threshold_configs
- institutional_knowledge_entries (GIN tsvector FTS)
- learning_insights (CHECK insight_type)
- ALTER TABLE decision_records + requirement_candidates: outcome_summary JSONB
- AFTER INSERT trigger trg_enrich_lineage on outcome_signals
- contracts/core/ updated (outcome-summary-columns-v1, append-only addendum)

Correlation engine (T02):
- Application/Helper/CorrelationEngine.hs: pure annotation→outcome SQL
- Web/Controller/OutcomeCorrelations.hs: ComputeCorrelationsAction + index

Pattern performance (T03):
- Web/Controller/PatternPerformance.hs: ComputePatternPerformanceAction

Adaptive thresholds (T04):
- Web/Controller/AdaptiveThresholds.hs: CalibrateThresholdsAction
- Application/Helper/FrictionScore.hs: applyAdaptiveWeights

Institutional knowledge (T05):
- DistilDecisionAction in DecisionRecords controller
- Web/Controller/InstitutionalKnowledge.hs: QueryKnowledgeBaseAction

Lineage enrichment (T06):
- Web/Controller/LineageEnrichment.hs: EnrichLineageAction (batch backfill)
- enrich_lineage_on_outcome_batch() PL/pgSQL helper in migration

Learning dashboard (T07):
- Web/Controller/LearningDashboard.hs: 5-panel autoRefresh view
- "Learning" nav link in FrontController

API v2 learning endpoints (T08):
- GET /api/v2/outcome-correlations, /pattern-performance, /knowledge-base/{id}
- OpenAPI schemas: OutcomeCorrelation, PatternPerformanceRecord, InstitutionalKnowledgeEntry

GAAF scorecard + docs (T09):
- Core 3.8→3.9, Functional 3.6→3.8, overall 3.61→3.68
- CLAUDE.md: IHF v0.2 complete, no active workplan

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Web/FrontController.hs

@@ -61,6 +61,14 @@ import Web.Controller.ModelRoutingPolicies ()
 import Web.Controller.AgentDelegations ()
 import Web.Controller.CollectiveProposals ()
 import Web.Controller.AiGovernancePolicies ()
+-- Phase 12 — Platform Memory and Continuous Learning (IHUB-WP-0013)
+import Web.Controller.OutcomeCorrelations ()
+import Web.Controller.PatternPerformance ()
+import Web.Controller.AdaptiveThresholds ()
+import Web.Controller.InstitutionalKnowledge ()
+import Web.Controller.LineageEnrichment ()
+import Web.Controller.LearningDashboard ()
+import Web.Controller.Api.V2.Learning ()
 import Web.Controller.Sessions ()
 
 instance FrontController WebApplication where
@@ -119,6 +127,14 @@ instance FrontController WebApplication where
         , parseRoute @AgentDelegationsController
         , parseRoute @CollectiveProposalsController
         , parseRoute @AiGovernancePoliciesController
+        -- Phase 12 — Platform Memory and Continuous Learning (IHUB-WP-0013)
+        , parseRoute @OutcomeCorrelationsController
+        , parseRoute @PatternPerformanceController
+        , parseRoute @AdaptiveThresholdsController
+        , parseRoute @InstitutionalKnowledgeController
+        , parseRoute @LineageEnrichmentController
+        , parseRoute @LearningDashboardController
+        , parseRoute @ApiV2LearningController
         ]
 
 instance InitControllerContext WebApplication where
@@ -173,6 +189,7 @@ defaultLayout inner = [hsx|
                 <a href={ModelRoutingPoliciesAction} class="text-sm text-gray-600 hover:text-gray-900">Routing</a>
                 <a href={CollectiveProposalsAction} class="text-sm text-gray-600 hover:text-gray-900">Collective</a>
                 <a href={AiGovernancePoliciesAction} class="text-sm text-gray-600 hover:text-gray-900">AI Gov</a>
+                <a href={LearningDashboardAction} class="text-sm text-gray-600 hover:text-gray-900">Learning</a>
                 <div class="ml-auto">
                     <a href={DeleteSessionAction} class="text-sm text-gray-500 hover:text-gray-700">Sign out</a>
                 </div>