feat(tables): Edit YAML row-context menu item

Opens the row's backing .yaml in the browse tool's YAML editor
(preview-yaml.js — CodeMirror with syntax highlight, lint, Ctrl+S
save). Disabled on multi-row range and unsaved draft rows.

Three URL shapes resolve correctly:
  per-party row → <dir>/?file=<file>.yaml
  SSR virtual   → /<project>/archive/<party>/?file=ssr.yaml
  rollup virtual → /<project>/archive/<party>/<slot>/?file=<file>.yaml

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

tables/js/row-ops.js

@@ -150,23 +150,71 @@
         return { status: 'ok', deleted: okCount, failed: failCount };
     }
 
+    // Map a row's yamlUrl to the browse-tool deep-link that opens the
+    // file in the YAML editor (preview-yaml.js). Three URL shapes:
+    //
+    //   /<project>/archive/<party>/<...>/<file>.yaml
+    //     → /<project>/archive/<party>/<...>/?file=<file>.yaml
+    //     (already canonical — just split into dir + file)
+    //
+    //   /<project>/ssr/<party>.yaml           (virtual SSR row)
+    //     → /<project>/archive/<party>/?file=ssr.yaml
+    //
+    //   /<project>/(mdl|rsk)/<party>__<file>.yaml   (virtual rollup row)
+    //     → /<project>/archive/<party>/(mdl|rsk)/?file=<file>.yaml
+    //
+    // Returns null when no editable URL is reachable (unsaved row, or
+    // a yamlUrl shape we don't recognize).
+    function browseEditUrl(row) {
+        if (!row || !row.yamlUrl) return null;
+        const url = row.yamlUrl;
+
+        let m = url.match(/^(\/[^/]+)\/ssr\/([^/]+)\.yaml$/);
+        if (m) return m[1] + '/archive/' + m[2] + '/?file=ssr.yaml';
+
+        m = url.match(/^(\/[^/]+)\/(mdl|rsk)\/([^/]+)__(.+)\.yaml$/);
+        if (m) return m[1] + '/archive/' + m[3] + '/' + m[2] + '/?file=' + m[4] + '.yaml';
+
+        const slash = url.lastIndexOf('/');
+        if (slash < 0) return null;
+        return url.slice(0, slash + 1) + '?file=' + url.slice(slash + 1);
+    }
+
     function buildRowMenu(ctx) {
         const rangeRows = ctx.rangeRowIds || [];
         const inRange = rangeRows.length > 1 && rangeRows.indexOf(ctx.rowId) !== -1;
         const targets = inRange ? rangeRows : [ctx.rowId];
-        const label = targets.length > 1 ? 'Delete ' + targets.length + ' rows' : 'Delete row';
+        const items = [];
-        return [
+
-            {
+        // Edit YAML — opens the row's backing .yaml file in the browse
-                label: label,
+        // tool's YAML editor. Disabled on multi-row range and unsaved
-                icon: '🗑',
+        // draft rows (no file on disk yet).
-                danger: true,
+        const singleRow = targets.length === 1 ? ctx.row : null;
-                disabled: !ctx.row || ctx.row.editable === false,
+        const editUrl = singleRow && !singleRow.isNew ? browseEditUrl(singleRow) : null;
-                action: function () {
+        items.push({
-                    if (targets.length > 1) deleteRows(targets);
+            label: 'Edit YAML',
-                    else deleteRow(targets[0]);
+            icon: '✎',
-                }
+            disabled: !editUrl,
+            action: function () {
+                if (editUrl) window.location.href = editUrl;
             }
-        ];
+        });
+
+        items.push({ separator: true });
+
+        const label = targets.length > 1 ? 'Delete ' + targets.length + ' rows' : 'Delete row';
+        items.push({
+            label: label,
+            icon: '🗑',
+            danger: true,
+            disabled: !ctx.row || ctx.row.editable === false,
+            action: function () {
+                if (targets.length > 1) deleteRows(targets);
+                else deleteRow(targets[0]);
+            }
+        });
+
+        return items;
     }
 
     function onRowContext(ev) {

zddc/internal/handler/tables.html

@@ -1511,7 +1511,7 @@ body.is-elevated::after {
             </svg>
             <div class="header-title-group">
                 <span class="app-header__title" id="table-title">ZDDC Table</span>
-                <span class="build-timestamp"><span style="color:red;font-weight:bold">v0.0.17-alpha · 2026-05-19 13:13:20 · cef7188-dirty</span></span>
+                <span class="build-timestamp"><span style="color:red;font-weight:bold">v0.0.17-alpha · 2026-05-19 13:30:29 · f3d334a-dirty</span></span>
             </div>
         </div>
         <div class="header-right">
@@ -5749,23 +5749,71 @@ body.is-elevated::after {
         return { status: 'ok', deleted: okCount, failed: failCount };
     }
 
+    // Map a row's yamlUrl to the browse-tool deep-link that opens the
+    // file in the YAML editor (preview-yaml.js). Three URL shapes:
+    //
+    //   /<project>/archive/<party>/<...>/<file>.yaml
+    //     → /<project>/archive/<party>/<...>/?file=<file>.yaml
+    //     (already canonical — just split into dir + file)
+    //
+    //   /<project>/ssr/<party>.yaml           (virtual SSR row)
+    //     → /<project>/archive/<party>/?file=ssr.yaml
+    //
+    //   /<project>/(mdl|rsk)/<party>__<file>.yaml   (virtual rollup row)
+    //     → /<project>/archive/<party>/(mdl|rsk)/?file=<file>.yaml
+    //
+    // Returns null when no editable URL is reachable (unsaved row, or
+    // a yamlUrl shape we don't recognize).
+    function browseEditUrl(row) {
+        if (!row || !row.yamlUrl) return null;
+        const url = row.yamlUrl;
+
+        let m = url.match(/^(\/[^/]+)\/ssr\/([^/]+)\.yaml$/);
+        if (m) return m[1] + '/archive/' + m[2] + '/?file=ssr.yaml';
+
+        m = url.match(/^(\/[^/]+)\/(mdl|rsk)\/([^/]+)__(.+)\.yaml$/);
+        if (m) return m[1] + '/archive/' + m[3] + '/' + m[2] + '/?file=' + m[4] + '.yaml';
+
+        const slash = url.lastIndexOf('/');
+        if (slash < 0) return null;
+        return url.slice(0, slash + 1) + '?file=' + url.slice(slash + 1);
+    }
+
     function buildRowMenu(ctx) {
         const rangeRows = ctx.rangeRowIds || [];
         const inRange = rangeRows.length > 1 && rangeRows.indexOf(ctx.rowId) !== -1;
         const targets = inRange ? rangeRows : [ctx.rowId];
-        const label = targets.length > 1 ? 'Delete ' + targets.length + ' rows' : 'Delete row';
+        const items = [];
-        return [
+
-            {
+        // Edit YAML — opens the row's backing .yaml file in the browse
-                label: label,
+        // tool's YAML editor. Disabled on multi-row range and unsaved
-                icon: '🗑',
+        // draft rows (no file on disk yet).
-                danger: true,
+        const singleRow = targets.length === 1 ? ctx.row : null;
-                disabled: !ctx.row || ctx.row.editable === false,
+        const editUrl = singleRow && !singleRow.isNew ? browseEditUrl(singleRow) : null;
-                action: function () {
+        items.push({
-                    if (targets.length > 1) deleteRows(targets);
+            label: 'Edit YAML',
-                    else deleteRow(targets[0]);
+            icon: '✎',
-                }
+            disabled: !editUrl,
+            action: function () {
+                if (editUrl) window.location.href = editUrl;
             }
-        ];
+        });
+
+        items.push({ separator: true });
+
+        const label = targets.length > 1 ? 'Delete ' + targets.length + ' rows' : 'Delete row';
+        items.push({
+            label: label,
+            icon: '🗑',
+            danger: true,
+            disabled: !ctx.row || ctx.row.editable === false,
+            action: function () {
+                if (targets.length > 1) deleteRows(targets);
+                else deleteRow(targets[0]);
+            }
+        });
+
+        return items;
     }
 
     function onRowContext(ev) {