cyi-box: Memphis-style toolbox admin platform

Go(fun)+SQLite backend, Vue 3 frontend. Modules: dashboard, pay gateway
(Epay-compatible + CDK stock), license/card system (per-app appid, domain
binding), AI memory bank with built-in MCP server (/mcp, FTS5 search,
signed read links), server SSH monitor + terminal + SFTP, proxy pool with
protocol-level alive checks, DB manager (mysql/pg/sqlite + SQL
autocomplete + import/export), disk share, vault (AES-GCM + TOTP),
bookmarks, dev tools.

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

backend/sqlc.yaml

@@ -0,0 +1,14 @@
+version: "2"
+sql:
+  - engine: "sqlite"
+    schema: "internal/db/schema.sql"
+    queries: "internal/db/queries.sql"
+    gen:
+      go:
+        package: "db"
+        out: "internal/db"
+        emit_interface: true
+        emit_empty_slices: true
+        overrides:
+          - column: "tools.enabled"
+            go_type: "bool"