Feat v0.9.6 deprecate stage_type, collapse stage_mode

stage_type no longer validated — starlark_hook presence determines
automation. stage_mode collapsed from 4→3 values (form/delegated/
automated); "review" mapped to "form" on input for backward compat.
Migration 018 converts existing rows. Review surface removed (~110
lines). 4 package manifests updated.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packages/icd-test-runner/js/crud/team-workflows.js

@@ -82,7 +82,7 @@
         name: 'Team Intake',
         ordinal: 0,
         history_mode: 'full',
-        stage_mode: 'chat_only'
+        stage_mode: 'form'
       });
       T.assertShape(d, T.S.workflowStage, 'stage');
       T.assert(d.name === 'Team Intake', 'name mismatch');
@@ -94,7 +94,7 @@
         name: 'Team Review',
         ordinal: 1,
         history_mode: 'summary',
-        stage_mode: 'review'
+        stage_mode: 'form'
       });
       T.assertShape(d, T.S.workflowStage, 'stage');
       stageIds.push(d.id);
@@ -111,7 +111,7 @@
         name: 'Team Intake (updated)',
         ordinal: 0,
         history_mode: 'full',
-        stage_mode: 'form_chat',
+        stage_mode: 'form',
         form_template: { fields: [{ key: 'name', type: 'text', label: 'Name', required: true }] }
       });
       T.assert(typeof d === 'object', 'expected object');