feat(flags): seed devintelli feature flags (11 flags)

- devintelli_enabled, devintelli_scan_enabled, devintelli_daily_sync
- 6 analytics panel flags (overview, commit, pr, review, language, productivity, repo)
- devintelli_billing_enabled (disabled by default)

Aligns with backend/src/lib/feature-flags.ts defaults

services/platform-service/src/modules/flags/seed.ts

@@ -353,6 +353,85 @@ const PRODUCT_FLAGS: Record<string, FlagSeedDef[]> = {
       percentage: 100,
     },
   ],
+  devintelli: [
+    {
+      key: 'devintelli_enabled',
+      enabled: true,
+      description: 'Master switch for DevIntelli product features',
+      platforms: ['web'],
+      percentage: 100,
+    },
+    {
+      key: 'devintelli_scan_enabled',
+      enabled: true,
+      description: 'GitHub PAT scanning and data ingestion',
+      platforms: ['web'],
+      percentage: 100,
+    },
+    {
+      key: 'devintelli_daily_sync',
+      enabled: true,
+      description: 'Scheduled daily incremental sync of GitHub data',
+      platforms: [],
+      percentage: 100,
+    },
+    {
+      key: 'devintelli_overview_panel',
+      enabled: true,
+      description: 'Dashboard overview panel (stats, heatmap, streak)',
+      platforms: ['web'],
+      percentage: 100,
+    },
+    {
+      key: 'devintelli_commit_panel',
+      enabled: true,
+      description: 'Commit Intelligence analytics panel',
+      platforms: ['web'],
+      percentage: 100,
+    },
+    {
+      key: 'devintelli_pr_panel',
+      enabled: true,
+      description: 'Pull Request analytics panel',
+      platforms: ['web'],
+      percentage: 100,
+    },
+    {
+      key: 'devintelli_review_panel',
+      enabled: true,
+      description: 'Code Review Activity analytics panel',
+      platforms: ['web'],
+      percentage: 100,
+    },
+    {
+      key: 'devintelli_language_panel',
+      enabled: true,
+      description: 'Language & Tech Profile analytics panel',
+      platforms: ['web'],
+      percentage: 100,
+    },
+    {
+      key: 'devintelli_productivity_panel',
+      enabled: true,
+      description: 'Productivity Patterns analytics panel',
+      platforms: ['web'],
+      percentage: 100,
+    },
+    {
+      key: 'devintelli_repo_panel',
+      enabled: true,
+      description: 'Repository analytics panel',
+      platforms: ['web'],
+      percentage: 100,
+    },
+    {
+      key: 'devintelli_billing_enabled',
+      enabled: false,
+      description: 'Billing / subscription features (Pro tier)',
+      platforms: ['web'],
+      percentage: 0,
+    },
+  ],
   clawcowork: [
     {
       key: 'sandbox_enabled',