Recently Updated: ignore price-refresh payloads#33
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The Recently Updated list looked useless because every dashboard appeared updated at the same time — that's because Quantic's periodic stock-price refresh fires update_holdings on every worker, and we were stamping updated_at on every payload. Now compute a holdings signature (symbol, quantity, avg_price) and only bump the timestamp when that materially changes. Price-only payloads — which carry new price / value_in_base / value_in_usd but the same user-controlled fields — preserve the previous timestamp. The restore path still overrides via `__updated_at` to keep the historical timestamp across server restarts. 37 tests / 0 failures (+4 new on the worker spec covering price-only, adding, quantity edit, and override preservation).
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The Recently Updated list looked useless because every dashboard appeared updated at the same time — that's Quantic's periodic stock-price refresh firing `update_holdings` on every worker, which we were stamping as a fresh `updated_at`.
Now compute a holdings signature `(symbol, quantity, avg_price)` and only bump the timestamp when that materially changes. Price-only payloads (new `price` / `value_in_base` / `value_in_usd`, same user-controlled fields) preserve the previous timestamp. The restore path still overrides via `__updated_at` to keep the historical timestamp across server restarts.
Test plan