refactor: improve spark table lookup and error reporting

Replace the heuristic-based slug parsing with a more robust
combined-slug lookup to correctly handle page names containing
hyphens. Added `scanSparkTables` to provide better error messages
when a table is not found.

src/components/journal/types/spark.tsx

@@ -16,7 +16,11 @@ import { z } from "zod";
 import { For } from "solid-js";
 import { registerMessageType } from "../registry";
 import { rollFormula } from "../../md-commander/hooks";
-import { findSparkTable, rollSparkTable } from "../../utils/spark-table";
+import {
+  findSparkTableByCombinedSlug,
+  rollSparkTable,
+  scanSparkTables,
+} from "../../utils/spark-table";
 import { getIndexedData } from "../../../data-loader/file-index";
 
 // ---------------------------------------------------------------------------
@@ -72,28 +76,28 @@ export async function resolveSparkPayload(raw: {
   key: string;
   filePath: string;
 }): Promise<SparkPayload> {
-  // key is "pageName-columnSlug".  The page name is the last segment of
-  // filePath (e.g. "01-dry-dock" from "/ayi-games/.../01-dry-dock").
-  // Strip it from the key to recover the column slug.
-  const pathParts = raw.filePath.replace(/^\//, "").split("/");
-  const pageName = pathParts[pathParts.length - 1] || raw.filePath;
-  const columnSlug =
-    raw.key.length > pageName.length + 1 && raw.key.startsWith(pageName + "-")
-      ? raw.key.slice(pageName.length + 1)
-      : raw.key;
-
-  const filePath = `/${raw.filePath.replace(/^\//, "")}`;
+  const mdPath = `/${raw.filePath.replace(/^\//, "")}.md`;
+  const pageName =
+    raw.filePath.replace(/^\//, "").split("/").filter(Boolean).pop() ||
+    raw.filePath;
 
   let content: string;
   try {
-    content = await getIndexedData(filePath);
+    content = await getIndexedData(mdPath);
   } catch {
-    throw new Error(`Failed to load file: "${filePath}"`);
+    throw new Error(`Failed to load file: "${mdPath}"`);
   }
 
-  const meta = findSparkTable(content, columnSlug);
+  const meta = findSparkTableByCombinedSlug(content, raw.key, pageName);
   if (!meta) {
-    throw new Error(`Spark table "${columnSlug}" not found in "${filePath}"`);
+    const available = scanSparkTables(content);
+    const names =
+      available.length > 0
+        ? available.map((t) => `${pageName}-${t.slug}`).join(", ")
+        : "(none)";
+    throw new Error(
+      `Spark table "${raw.key}" not found in "${mdPath}". Available: ${names}`,
+    );
   }
 
   const sparkResult = rollSparkTable(meta);