feat(P7): IHF Phase 7 complete — advanced observability and operational integration

T01 schema: friction_scores, bottleneck_records, hub_health_snapshots,
cross_hub_propagations + migration 1743552000.

T02 Widget Pain Heatmap: computeFrictionScore (formula documented), RecomputeFriction
action, colour-coded grid view (green/yellow/amber/red).

T03 Workflow Bottleneck Analysis: detectBottlenecks across 4 pipeline stages
(candidate 30d, requirement 60d, decision 30d, observation 14d), idempotent,
severity from age ratio, resolve action.

T04 Hub Health Correlation: computeHubHealth (deduction table documented),
append-only HubHealthSnapshot, health history view, badge on hub Show page.

T05 Cross-Hub Propagation: annotation_cluster + widget_type_friction heuristics,
idempotent detection, acknowledge/resolve lifecycle.

T06 Operational Review Board: 4-panel AutoRefresh global dashboard — health matrix,
top-10 friction, bottleneck stage counts, open propagations.

T07 gate: 5 describe blocks in Test/Integration.hs; SCOPE.md updated Phase 7
complete; docs/phase7-summary.md written.

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

Application/Schema.sql

@@ -379,3 +379,71 @@ CREATE INDEX widgets_adapter_spec_id_idx ON widgets (adapter_spec_id);
 -- Per-hub API key for bearer-token auth on the interaction reporting endpoint.
 ALTER TABLE hubs
     ADD COLUMN api_key TEXT;
+
+-- Phase 7: Advanced Observability and Operational Integration
+
+-- Aggregated pain score per widget, recomputed on demand or scheduled.
+CREATE TABLE friction_scores (
+    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
+    widget_id UUID NOT NULL REFERENCES widgets(id),
+    score INTEGER NOT NULL DEFAULT 0,
+    annotation_count INTEGER NOT NULL DEFAULT 0,
+    error_event_count INTEGER NOT NULL DEFAULT 0,
+    regression_flag BOOLEAN NOT NULL DEFAULT FALSE,
+    stale_candidate_count INTEGER NOT NULL DEFAULT 0,
+    last_computed_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL,
+    UNIQUE (widget_id)
+);
+
+CREATE INDEX friction_scores_widget_id_idx ON friction_scores (widget_id);
+CREATE INDEX friction_scores_score_idx ON friction_scores (score DESC);
+
+-- Detected stalls at specific pipeline stages.
+CREATE TABLE bottleneck_records (
+    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
+    hub_id UUID NOT NULL REFERENCES hubs(id),
+    stage TEXT NOT NULL,
+    subject_type TEXT NOT NULL,
+    subject_id UUID NOT NULL,
+    stalled_since TIMESTAMP WITH TIME ZONE NOT NULL,
+    severity TEXT NOT NULL DEFAULT 'medium',
+    resolved_at TIMESTAMP WITH TIME ZONE,
+    notes TEXT,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
+);
+
+CREATE INDEX bottleneck_records_hub_id_idx ON bottleneck_records (hub_id);
+CREATE INDEX bottleneck_records_stage_idx ON bottleneck_records (stage);
+CREATE INDEX bottleneck_records_resolved_idx ON bottleneck_records (resolved_at)
+    WHERE resolved_at IS NULL;
+
+-- Periodic health snapshots for trend tracking.
+CREATE TABLE hub_health_snapshots (
+    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
+    hub_id UUID NOT NULL REFERENCES hubs(id),
+    health_score INTEGER NOT NULL,
+    open_candidates INTEGER NOT NULL DEFAULT 0,
+    regressed_widgets INTEGER NOT NULL DEFAULT 0,
+    stale_decisions INTEGER NOT NULL DEFAULT 0,
+    active_bottlenecks INTEGER NOT NULL DEFAULT 0,
+    computed_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
+);
+
+CREATE INDEX hub_health_snapshots_hub_id_idx ON hub_health_snapshots (hub_id);
+CREATE INDEX hub_health_snapshots_computed_at_idx
+    ON hub_health_snapshots (hub_id, computed_at DESC);
+
+-- Patterns detected across multiple hubs.
+CREATE TABLE cross_hub_propagations (
+    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
+    pattern_type TEXT NOT NULL,
+    source_hub_id UUID REFERENCES hubs(id),
+    affected_hub_ids JSONB NOT NULL DEFAULT '[]',
+    summary TEXT NOT NULL,
+    detected_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL,
+    status TEXT NOT NULL DEFAULT 'open',
+    notes TEXT
+);
+
+CREATE INDEX cross_hub_propagations_status_idx ON cross_hub_propagations (status);
+CREATE INDEX cross_hub_propagations_pattern_idx ON cross_hub_propagations (pattern_type);