feat(P6/T01): Phase 6 schema — WidgetAdapterSpec, contracts, widgets.adapter_spec_id

Adds Phase 6 tables: envelope_emission_contracts, interaction_reporting_contracts,
widget_adapter_specs. Adds adapter_spec_id FK to widgets and api_key to hubs.
Seeds v1.0 contracts in migration. Registers Phase 6 controller types and routes.

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

Application/Migration/1743465600-ihf-phase6-cross-framework-adaptation.sql

@@ -0,0 +1,91 @@
+-- IHF Phase 6 — Cross-Framework UI Adaptation Layer
+-- Adds: envelope_emission_contracts, interaction_reporting_contracts,
+--       widget_adapter_specs, widgets.adapter_spec_id, hubs.api_key
+-- Seeds: v1.0 contracts
+
+CREATE TABLE envelope_emission_contracts (
+    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
+    contract_version TEXT NOT NULL UNIQUE,
+    required_attributes JSONB NOT NULL,
+    optional_attributes JSONB NOT NULL DEFAULT '[]',
+    validation_rules JSONB NOT NULL DEFAULT '{}',
+    description TEXT,
+    status TEXT NOT NULL DEFAULT 'active',
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
+);
+
+CREATE INDEX envelope_emission_contracts_status_idx ON envelope_emission_contracts (status);
+
+CREATE TABLE interaction_reporting_contracts (
+    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
+    contract_version TEXT NOT NULL UNIQUE,
+    endpoint_path TEXT NOT NULL,
+    accepted_event_types JSONB NOT NULL,
+    required_fields JSONB NOT NULL,
+    auth_scheme TEXT NOT NULL DEFAULT 'bearer',
+    description TEXT,
+    status TEXT NOT NULL DEFAULT 'active',
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
+);
+
+CREATE INDEX interaction_reporting_contracts_status_idx ON interaction_reporting_contracts (status);
+
+CREATE TABLE widget_adapter_specs (
+    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
+    name TEXT NOT NULL UNIQUE,
+    framework TEXT NOT NULL,
+    version TEXT NOT NULL,
+    envelope_contract_id UUID REFERENCES envelope_emission_contracts(id),
+    reporting_contract_id UUID REFERENCES interaction_reporting_contracts(id),
+    status TEXT NOT NULL DEFAULT 'draft',
+    notes TEXT,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
+);
+
+CREATE INDEX widget_adapter_specs_framework_idx ON widget_adapter_specs (framework);
+CREATE INDEX widget_adapter_specs_status_idx ON widget_adapter_specs (status);
+
+ALTER TABLE widgets
+    ADD COLUMN adapter_spec_id UUID REFERENCES widget_adapter_specs(id);
+
+CREATE INDEX widgets_adapter_spec_id_idx ON widgets (adapter_spec_id);
+
+ALTER TABLE hubs
+    ADD COLUMN api_key TEXT;
+
+-- Seed: v1.0 EnvelopeEmissionContract
+INSERT INTO envelope_emission_contracts (
+    contract_version,
+    required_attributes,
+    optional_attributes,
+    validation_rules,
+    description,
+    status
+) VALUES (
+    '1.0',
+    '["data-widget-id", "data-view-context", "data-hub-id"]',
+    '["data-policy-scope", "data-widget-version"]',
+    '{"data-widget-id": "uuid", "data-hub-id": "uuid"}',
+    'Canonical IHF widget envelope contract v1.0. Requires widget identity, view context, and hub attribution on every rendered widget element.',
+    'active'
+);
+
+-- Seed: v1.0 InteractionReportingContract
+INSERT INTO interaction_reporting_contracts (
+    contract_version,
+    endpoint_path,
+    accepted_event_types,
+    required_fields,
+    auth_scheme,
+    description,
+    status
+) VALUES (
+    '1.0',
+    '/api/v1/interaction-events',
+    '["clicked", "viewed", "submitted", "dismissed", "errored"]',
+    '["widget_id", "hub_id", "event_type", "occurred_at"]',
+    'bearer',
+    'Canonical IHF interaction reporting contract v1.0. External adapters POST events to this endpoint using a hub-scoped bearer token.',
+    'active'
+);

Application/Schema.sql

@@ -312,3 +312,70 @@ CREATE TABLE confidence_annotations (
 );
 
 CREATE INDEX confidence_annotations_proposal_id_idx ON confidence_annotations (proposal_id);
+
+-- ============================================================
+-- Phase 6 — Cross-Framework UI Adaptation Layer
+-- ============================================================
+
+-- Formalises the rules for widget envelope emission: which data-* attributes
+-- are required, their format, and the contract version.
+CREATE TABLE envelope_emission_contracts (
+    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
+    contract_version TEXT NOT NULL UNIQUE,   -- e.g. "1.0", "1.1"
+    required_attributes JSONB NOT NULL,
+    -- e.g. ["data-widget-id", "data-view-context", "data-hub-id"]
+    optional_attributes JSONB NOT NULL DEFAULT '[]',
+    validation_rules JSONB NOT NULL DEFAULT '{}',
+    -- machine-readable rules: format checks, presence guards
+    description TEXT,
+    status TEXT NOT NULL DEFAULT 'active',
+    -- status values: draft | active | superseded
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
+);
+
+CREATE INDEX envelope_emission_contracts_status_idx ON envelope_emission_contracts (status);
+
+-- Standardised REST interface contract for external event and annotation
+-- submission — used by non-IHP adapters.
+CREATE TABLE interaction_reporting_contracts (
+    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
+    contract_version TEXT NOT NULL UNIQUE,   -- e.g. "1.0"
+    endpoint_path TEXT NOT NULL,             -- e.g. "/api/v1/interaction-events"
+    accepted_event_types JSONB NOT NULL,     -- e.g. ["clicked","viewed","submitted"]
+    required_fields JSONB NOT NULL,
+    -- minimum payload: widget_id, hub_id, event_type, occurred_at
+    auth_scheme TEXT NOT NULL DEFAULT 'bearer',
+    description TEXT,
+    status TEXT NOT NULL DEFAULT 'active',
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
+);
+
+CREATE INDEX interaction_reporting_contracts_status_idx ON interaction_reporting_contracts (status);
+
+-- Describes how a specific UI technology maps to IHF widget protocol obligations.
+CREATE TABLE widget_adapter_specs (
+    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
+    name TEXT NOT NULL UNIQUE,         -- e.g. "react-18", "vue-3", "web-component"
+    framework TEXT NOT NULL,           -- e.g. "react", "vue", "vanilla"
+    version TEXT NOT NULL,             -- adapter spec version, e.g. "1.0"
+    envelope_contract_id UUID REFERENCES envelope_emission_contracts(id),
+    reporting_contract_id UUID REFERENCES interaction_reporting_contracts(id),
+    status TEXT NOT NULL DEFAULT 'draft',
+    -- status values: draft | active | deprecated
+    notes TEXT,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
+);
+
+CREATE INDEX widget_adapter_specs_framework_idx ON widget_adapter_specs (framework);
+CREATE INDEX widget_adapter_specs_status_idx ON widget_adapter_specs (status);
+
+-- Link widgets to their adapter spec (null = native IHP widget).
+ALTER TABLE widgets
+    ADD COLUMN adapter_spec_id UUID REFERENCES widget_adapter_specs(id);
+
+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;

Web/FrontController.hs

@@ -17,6 +17,9 @@ import Web.Controller.Requirements ()
 import Web.Controller.DecisionRecords ()
 import Web.Controller.DeploymentRecords ()
 import Web.Controller.AgentProposals ()
+import Web.Controller.EnvelopeEmissionContracts ()
+import Web.Controller.InteractionReportingContracts ()
+import Web.Controller.WidgetAdapterSpecs ()
 import Web.Controller.Sessions ()
 
 instance FrontController WebApplication where
@@ -32,6 +35,9 @@ instance FrontController WebApplication where
         , parseRoute @DecisionRecordsController
         , parseRoute @DeploymentRecordsController
         , parseRoute @AgentProposalsController
+        , parseRoute @EnvelopeEmissionContractsController
+        , parseRoute @InteractionReportingContractsController
+        , parseRoute @WidgetAdapterSpecsController
         ]
 
 instance InitControllerContext WebApplication where
@@ -62,6 +68,7 @@ defaultLayout inner = [hsx|
                 <a href={DecisionRecordsAction} class="text-sm text-gray-600 hover:text-gray-900">Decisions</a>
                 <a href={DeploymentRecordsAction} class="text-sm text-gray-600 hover:text-gray-900">Deployments</a>
                 <a href={AgentProposalsAction} class="text-sm text-gray-600 hover:text-gray-900">Agent</a>
+                <a href={WidgetAdapterSpecsAction} class="text-sm text-gray-600 hover:text-gray-900">Adapters</a>
                 <div class="ml-auto">
                     <a href={DeleteSessionAction} class="text-sm text-gray-500 hover:text-gray-700">Sign out</a>
                 </div>

Web/Routes.hs

@@ -34,5 +34,10 @@ instance AutoRoute DeploymentRecordsController
 -- Agent Proposals (Phase 5)
 instance AutoRoute AgentProposalsController
 
+-- Phase 6 — Cross-Framework UI Adaptation
+instance AutoRoute EnvelopeEmissionContractsController
+instance AutoRoute InteractionReportingContractsController
+instance AutoRoute WidgetAdapterSpecsController
+
 -- Sessions
 instance AutoRoute SessionsController

Web/Types.hs

@@ -26,7 +26,8 @@ data HubsController
     | TriageDashboardAction          { hubId :: !(Id Hub) }
     | GovernanceDashboardAction      { hubId :: !(Id Hub) }
     | AntifragilityDashboardAction   { hubId :: !(Id Hub) }
-    | AgentAuditDashboardAction      { hubId :: !(Id Hub) }
+    | AgentAuditDashboardAction          { hubId :: !(Id Hub) }
+    | AdapterCompatibilityDashboardAction { hubId :: !(Id Hub) }
     deriving (Eq, Show, Data)
 
 data WidgetsController
@@ -111,6 +112,25 @@ data AgentProposalsController
     | RejectProposalAction    { agentProposalId :: !(Id AgentProposal) }
     deriving (Eq, Show, Data)
 
+data EnvelopeEmissionContractsController
+    = EnvelopeEmissionContractsAction
+    | ShowEnvelopeEmissionContractAction { envelopeEmissionContractId :: !(Id EnvelopeEmissionContract) }
+    deriving (Eq, Show, Data)
+
+data InteractionReportingContractsController
+    = InteractionReportingContractsAction
+    | ShowInteractionReportingContractAction { interactionReportingContractId :: !(Id InteractionReportingContract) }
+    deriving (Eq, Show, Data)
+
+data WidgetAdapterSpecsController
+    = WidgetAdapterSpecsAction
+    | ShowWidgetAdapterSpecAction   { widgetAdapterSpecId :: !(Id WidgetAdapterSpec) }
+    | NewWidgetAdapterSpecAction
+    | CreateWidgetAdapterSpecAction
+    | EditWidgetAdapterSpecAction   { widgetAdapterSpecId :: !(Id WidgetAdapterSpec) }
+    | UpdateWidgetAdapterSpecAction { widgetAdapterSpecId :: !(Id WidgetAdapterSpec) }
+    deriving (Eq, Show, Data)
+
 data SessionsController
     = NewSessionAction
     | CreateSessionAction