[US-014] Product catalog management in store dashboard

[leimo2011]

User Story

As a store owner,
I want to manage my product catalog from the web dashboard,
So that buyers can see what I'm selling during live streams.

Acceptance Criteria

• Add / edit / delete products
• Product fields: name, description, price (PHP or KWD), photos (up to 10), category, SKU
• Toggle in-stock / sold-out status
• Bulk actions: activate, deactivate, delete selected
• Photo upload with drag-and-drop reordering

Estimate: 5 SP | Milestone: M2

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Epic: [EPIC-05] Store Management Dashboard (Admin)