fix(WP-0014/A2): continued type-correctness fixes and Tailwind CSS output

- Schema.sql: add FK constraints for phases 6–12 so IHP generates Id X
  instead of UUID for FK columns (widget_adapter_specs, friction_scores,
  hub_routing_rules, agent_proposals, hub_capability_manifests, etc.)
- HubHealth, ModelRouter, ApiInteractionEvents: remove toUUID() wrappers
  now that FK columns carry proper Id types
- FederatedGovernance/Dashboard, HubRoutingRules/Index: same Id comparison fix
- AgentProposals/Index, DecisionRecords/Index, ApiConsumers/Edit: Id type fixes
- BottleneckDetector: add Data.Coerce import; CrossHubPropagation: add guard
- ApiKeys: qualify cryptohash-sha256 import to resolve package ambiguity
- WebhookDeliveryJob: use LBS.fromStrict; remove duplicate diffUTCTime
- Sessions/New: use renderFlashMessages (IHP built-in)
- ArchiveRecords/LineageInspector: simplify renderChainStep signature
- static/app.css: Tailwind CSS output (2011 lines) — A3 confirmed
- workplans/IHUB-WP-0015-local-deployment-intro-ui.md: add workplan

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

Web/Controller/ApiInteractionEvents.hs

@@ -80,7 +80,7 @@ createEventForHub hub = do
                 Nothing -> do
                     renderJsonWithStatusCode status422 (object ["error" .= ("Widget not found" :: Text)])
                 Just widget -> do
-                    when (widget.hubId /= toUUID hub.id) do
+                    when (widget.hubId /= hub.id) do
                         renderJsonWithStatusCode status403 (object ["error" .= ("Widget does not belong to this hub" :: Text)])
 
                     event <- newRecord @InteractionEvent

Web/Controller/ApiKeys.hs

@@ -7,7 +7,7 @@ import Generated.Types
 import IHP.Prelude
 import IHP.ControllerPrelude
 import qualified Data.Text.Encoding as TE
-import qualified Crypto.Hash.SHA256 as SHA256
+import qualified "cryptohash-sha256" Crypto.Hash.SHA256 as SHA256
 import qualified Data.ByteString.Base16 as Base16
 import qualified Data.ByteString.Random as Random