refactor(web-test): этап D.12 — fillTableRow → row-fill.mjs, deleteTableRow → grid.mjs

table/row-fill.mjs (~1230 LOC): fillTableRow целиком, как entry-point.
table/grid.mjs: добавлен deleteTableRow + расширены импорты (clickElement,
dismissPendingErrors, waitForStable, getFormState).

Дальнейший распил fillTableRow на под-хелперы (trySelect/readVisibleRows/
pickValueWithOptionalType/enterEditMode/fillCellSequentially per плана §12.1-12.3)
отложен — при необходимости создаём table/row-fill/*.mjs subfolder.

browser.mjs: 1532 → 249 LOC (-84% от baseline 6293).
05-table регресс зелёный.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.claude/skills/web-test/scripts/table/grid.mjs

@@ -7,6 +7,11 @@
 
 import { page, ensureConnected } from '../core/state.mjs';
 import { detectFormScript, readTableScript, resolveGridScript } from '../dom.mjs';
+import { dismissPendingErrors } from '../core/errors.mjs';
+import { waitForStable } from '../core/wait.mjs';
+import { clickElement } from '../core/click.mjs';
+// getFormState lives in browser.mjs.
+import { getFormState } from '../browser.mjs';
 
 /** Read structured table data with pagination. Returns columns, rows, total count. */
 export async function readTable({ maxRows = 20, offset = 0, table } = {}) {
@@ -21,3 +26,79 @@ export async function readTable({ maxRows = 20, offset = 0, table } = {}) {
   }
   return await page.evaluate(readTableScript(formNum, { maxRows, offset, gridSelector }));
 }
+
+/**
+ * Delete a row from the current table part.
+ * Single click to select the row, then Delete key to remove it.
+ *
+ * @param {number} row - 0-based row index to delete
+ * @param {Object} [options]
+ * @param {string} [options.tab] - Switch to this form tab before operating
+ * @returns {{ deleted, rowsBefore, rowsAfter, form }}
+ */
+export async function deleteTableRow(row, { tab, table } = {}) {
+  ensureConnected();
+  await dismissPendingErrors();
+  const formNum = await page.evaluate(detectFormScript());
+  if (formNum === null) throw new Error('deleteTableRow: no form found');
+
+  // Pre-resolve grid when table is specified
+  let gridSelector;
+  if (table) {
+    const resolved = await page.evaluate(resolveGridScript(formNum, table));
+    if (resolved.error) throw new Error(`deleteTableRow: table "${table}" not found. Available: ${resolved.available?.map(a => a.name).join(', ') || 'none'}`);
+    gridSelector = resolved.gridSelector;
+  }
+
+  // 1. Switch tab if requested
+  if (tab) {
+    await clickElement(tab);
+    await page.waitForTimeout(500);
+  }
+
+  // 2. Find the target row and click to select it
+  const cellCoords = await page.evaluate(`(() => {
+    const grid = ${gridSelector
+      ? `document.querySelector(${JSON.stringify(gridSelector)})`
+      : `(() => { const grids = [...document.querySelectorAll('.grid')].filter(el => el.offsetWidth > 0); return grids[grids.length - 1]; })()`};
+    if (!grid) return { error: 'no_grid' };
+    const body = grid.querySelector('.gridBody');
+    if (!body) return { error: 'no_grid_body' };
+    const rows = [...body.querySelectorAll('.gridLine')];
+    if (${row} >= rows.length) return { error: 'row_out_of_range', total: rows.length };
+    const line = rows[${row}];
+    // Use visible gridBox containers (not gridBoxText) to avoid clicking checkboxes
+    const boxes = [...line.children].filter(b => b.offsetWidth > 0 && !b.classList.contains('gridBoxComp'));
+    // Skip first column (row number / checkbox) — pick second visible box
+    const box = boxes.length > 1 ? boxes[1] : boxes[0];
+    if (!box) return { error: 'no_cell' };
+    const cell = box.querySelector('.gridBoxText') || box;
+    const r = cell.getBoundingClientRect();
+    return { x: Math.round(r.x + r.width / 2), y: Math.round(r.y + r.height / 2), total: rows.length };
+  })()`);
+
+  if (cellCoords.error) throw new Error(`deleteTableRow: ${cellCoords.error}${cellCoords.total ? ' (total rows: ' + cellCoords.total + ')' : ''}`);
+
+  const rowsBefore = cellCoords.total;
+
+  // Single click to select the row
+  await page.mouse.click(cellCoords.x, cellCoords.y);
+  await page.waitForTimeout(300);
+
+  // 3. Press Delete to remove the row
+  await page.keyboard.press('Delete');
+  await waitForStable();
+
+  // 4. Count rows after deletion
+  const rowsAfter = await page.evaluate(`(() => {
+    const grid = ${gridSelector
+      ? `document.querySelector(${JSON.stringify(gridSelector)})`
+      : `(() => { const grids = [...document.querySelectorAll('.grid')].filter(el => el.offsetWidth > 0); return grids[grids.length - 1]; })()`};
+    if (!grid) return 0;
+    const body = grid.querySelector('.gridBody');
+    return body ? body.querySelectorAll('.gridLine').length : 0;
+  })()`);
+
+  const formData = await getFormState();
+  return { deleted: row, rowsBefore, rowsAfter, form: formData };
+}