Edit product from search card, fix Ayutinskiy bread kcal

Product editing:
- "Ред." button on expanded product card
- showEditProductModal: edit name, KBJU, all micronutrients
- Updates product in DB directly, refreshes search

Bread fix:
- "Хлеб Тостовый пшеничный Аютинский 280г" was 268 in Magnit data
- Package says 243 kcal/100g — corrected in seed DB
- Seed version 7

Users can now fix any wrong KBJU directly from the product card
without re-importing or editing the seed DB manually.

frontend/js/main.js

@@ -1290,7 +1290,10 @@ async function renderProducts(container) {
         </div>
         ${microChips.length ? `<div class="nutrient-strip" style="padding:4px 0">${microChips.map(c => c.html).join("")}</div>` : ""}
         ${p.composition ? `<div class="prod-composition">${esc(p.composition)}</div>` : ""}
-        <button class="btn-primary prod-add-btn" data-pid="${p.id}">Добавить в дневник</button>
+        <div style="display:flex;gap:8px;margin-top:8px">
+          <button class="btn-primary prod-add-btn" data-pid="${p.id}" style="flex:1">Добавить в дневник</button>
+          <button class="btn-secondary prod-edit-btn" data-pid="${p.id}" style="flex:0">Ред.</button>
+        </div>
       </div>`;
   }
 
@@ -1309,6 +1312,13 @@ async function renderProducts(container) {
         showAddFoodFromProduct(parseInt(btn.dataset.pid));
       };
     });
+    el.querySelectorAll(".prod-edit-btn").forEach(btn => {
+      btn.onclick = async e => {
+        e.stopPropagation();
+        const p = await DB.getProduct(parseInt(btn.dataset.pid));
+        if (p) showEditProductModal(p, () => doSearch(false));
+      };
+    });
   }
 
   function showAddFoodFromProduct(productId) {
@@ -1403,6 +1413,71 @@ function showAddProductModal(onSaved) {
   });
 }
 
+function showEditProductModal(p, onSaved) {
+  const microHtml = MICRO_FIELDS.map(f => {
+    let val = p[f.key] ?? "";
+    if (val && f.mult) val = Math.round(val / f.mult * 1000) / 1000;
+    return `<div class="form-group micro-field">
+      <label>${f.label}</label>
+      <input id="ep-${f.key}" type="number" inputmode="decimal" step="any" value="${val}" placeholder="—" />
+    </div>`;
+  }).join("");
+
+  showModal(`
+    <h3>Редактирование продукта</h3>
+    <div class="form-group">
+      <label>Название</label>
+      <input id="ep-name" type="text" value="${esc(p.name)}" />
+    </div>
+    <div style="display:flex;gap:8px">
+      <div class="form-group" style="flex:1">
+        <label>ккал/100г</label>
+        <input id="ep-kcal" type="number" inputmode="decimal" value="${p.kcal_per_100g ?? ""}" />
+      </div>
+      <div class="form-group" style="flex:1">
+        <label>Б</label>
+        <input id="ep-protein" type="number" inputmode="decimal" step="0.1" value="${p.protein_per_100g ?? ""}" />
+      </div>
+      <div class="form-group" style="flex:1">
+        <label>Ж</label>
+        <input id="ep-fat" type="number" inputmode="decimal" step="0.1" value="${p.fat_per_100g ?? ""}" />
+      </div>
+      <div class="form-group" style="flex:1">
+        <label>У</label>
+        <input id="ep-carbs" type="number" inputmode="decimal" step="0.1" value="${p.carbs_per_100g ?? ""}" />
+      </div>
+    </div>
+    <p style="color:var(--muted);font-size:12px;margin:8px 0 4px">Нутриенты на 100г:</p>
+    <div class="micro-grid">${microHtml}</div>`,
+  async overlay => {
+    const name = overlay.querySelector("#ep-name").value.trim();
+    if (!name) return false;
+    const sets = ["name=?1", "kcal_per_100g=?2", "protein_per_100g=?3", "fat_per_100g=?4", "carbs_per_100g=?5"];
+    const vals = [
+      name,
+      parseFloat(overlay.querySelector("#ep-kcal").value) || null,
+      parseFloat(overlay.querySelector("#ep-protein").value) || null,
+      parseFloat(overlay.querySelector("#ep-fat").value) || null,
+      parseFloat(overlay.querySelector("#ep-carbs").value) || null,
+    ];
+    let idx = 6;
+    for (const f of MICRO_FIELDS) {
+      let val = parseFloat(overlay.querySelector(`#ep-${f.key}`).value) || null;
+      if (val && f.mult) val *= f.mult;
+      sets.push(`${f.key}=?${idx}`);
+      vals.push(val);
+      idx++;
+    }
+    vals.push(p.id);
+    await window.__TAURI__.core.invoke("plugin:sql|execute", {
+      db: "sqlite:baldav.db",
+      query: `UPDATE products SET ${sets.join(", ")} WHERE id=?${idx}`,
+      values: vals,
+    });
+    if (onSaved) onSaved();
+  });
+}
+
 // ---------------------------------------------------------------------------
 // RECIPES screen
 // ---------------------------------------------------------------------------