feat: add SQL query tool, platform debug, loyalty settings, and multi-module improvements

- Add admin SQL query tool with saved queries, schema explorer presets,
  and collapsible category sections (dev_tools module)
- Add platform debug tool for admin diagnostics
- Add loyalty settings page with owner-only access control
- Fix loyalty settings owner check (use currentUser instead of window.__userData)
- Replace HTTPException with AuthorizationException in loyalty routes
- Expand loyalty module with PIN service, Apple Wallet, program management
- Improve store login with platform detection and multi-platform support
- Update billing feature gates and subscription services
- Add store platform sync improvements and remove is_primary column
- Add unit tests for loyalty (PIN, points, stamps, program services)
- Update i18n translations across dev_tools locales

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

app/modules/billing/migrations/versions/billing_001_initial.py

@@ -44,7 +44,7 @@ def upgrade() -> None:
         sa.Column("platform_id", sa.Integer(), sa.ForeignKey("platforms.id", ondelete="CASCADE"), nullable=False, index=True, comment="Reference to the platform"),
         sa.Column("tier_id", sa.Integer(), sa.ForeignKey("subscription_tiers.id", ondelete="SET NULL"), nullable=True, index=True, comment="Platform-specific subscription tier"),
         sa.Column("is_active", sa.Boolean(), nullable=False, server_default="true", comment="Whether the store is active on this platform"),
-        sa.Column("is_primary", sa.Boolean(), nullable=False, server_default="false", comment="Whether this is the store's primary platform"),
+        sa.Column("is_primary", sa.Boolean(), nullable=False, server_default="false", comment="Whether this is the store's primary platform"),  # Removed in migration remove_is_primary_001
         sa.Column("custom_subdomain", sa.String(100), nullable=True, comment="Platform-specific subdomain (if different from main subdomain)"),
         sa.Column("settings", sa.JSON(), nullable=True, server_default="{}", comment="Platform-specific store settings"),
         sa.Column("joined_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False, comment="When the store joined this platform"),
@@ -53,7 +53,7 @@ def upgrade() -> None:
         sa.UniqueConstraint("store_id", "platform_id", name="uq_store_platform"),
     )
     op.create_index("idx_store_platform_active", "store_platforms", ["store_id", "platform_id", "is_active"])
-    op.create_index("idx_store_platform_primary", "store_platforms", ["store_id", "is_primary"])
+    op.create_index("idx_store_platform_primary", "store_platforms", ["store_id", "is_primary"])  # Removed in migration remove_is_primary_001
 
     # --- tier_feature_limits ---
     op.create_table(