feat(crystal): ✨ Add crystal command implementation and update infrastructure documentation

Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>

claude/dot-claude/agents/infrastructure.md

@@ -79,7 +79,7 @@ infrastructure/
 - PostgreSQL (per-feature databases), Redis, Minio (S3-compatible storage)
 - Meilisearch (search), nginx (reverse proxy)
 - Feature-specific databases in `feature-dbs` profile
-- Crystal infra (crystal-redis, crystal-postgres) managed by `tools/platform-knowledge/docker-compose.yml`
+- Crystal infra (crystal-redis, crystal-postgres) managed by `tools/platform-knowledge/crystal-ai/docker-compose.yml`
 
 ### Dev Domains
 - `*.atlilith.local` — Platform domains

run/cli/commands/crystal.ts

@@ -36,7 +36,7 @@ const KNOWLEDGE_PLATFORM = resolve(
 
 const CRYSTAL_INFRA = resolve(
   PLATFORM_ROOT,
-  'codebase/tools/platform-knowledge',
+  'codebase/tools/platform-knowledge/crystal-ai',
 );
 
 const SEMANTIC_SERVICE = resolve(
@@ -249,7 +249,7 @@ function runLegacyCrystal(args: string[]): Promise<CommandResult> {
         console.log(colors.muted('  Install it with:'));
         console.log(
           colors.muted(
-            '    cd codebase/tools/platform-knowledge/packages/cli && pip install -e .',
+            '    cd codebase/tools/platform-knowledge/crystal-ai/packages/cli && pip install -e .',
           ),
         );
         console.log('');