Add saves and board support for manual testing

The board gains an "A tester" column for the checks that need a person:
the project-board hook now reads it, so a commit that mentions one of its
cards moves the card instead of adding it to a second column. A test that
runs only with MAKE_TEST_SAVES=1 writes the backup those checks import,
built from the local ROM and kept out of git.

[no-card]

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

scripts/project-board.mjs

@@ -5,7 +5,8 @@
 //
 // A commit message mentioning "Closes #N" (also close/closed, fix/fixes/fixed,
 // resolve/resolves/resolved) moves card N to Fait and closes the issue. Any
-// other "#N" moves card N to En cours. A commit on the default branch with no
+// other "#N" moves card N to En cours, including from the optional "A tester"
+// column of manual test cards. A commit on the default branch with no
 // reference creates a closed card in Fait from the commit message. Merges,
 // amends, rebases and messages containing [no-card] are skipped. On other
 // branches only referenced cards move, and only to En cours.
@@ -21,6 +22,8 @@ import { execFileSync } from "node:child_process";
 import { existsSync, readFileSync, writeFileSync } from "node:fs";
 
 const COLUMNS = { todo: "A faire", doing: "En cours", done: "Fait" };
+// Columns whose cards commits may move, but which the board may lack.
+const OPTIONAL_COLUMNS = { test: "A tester" };
 const CLOSING = /\b(?:close[sd]?|fix(?:e[sd])?|resolve[sd]?)\s*:?\s+#(\d+)\b/gi;
 const REFERENCE = /(?<![\w/])#(\d+)\b/g;
 
@@ -86,6 +89,10 @@ async function board(api) {
     if (!column) throw new Error(`Project ${project} has no "${title}" column`);
     id[key] = column.id;
   }
+  for (const [key, title] of Object.entries(OPTIONAL_COLUMNS)) {
+    const column = columns.find((c) => c.title === title);
+    if (column) id[key] = column.id;
+  }
   const membership = new Map();
   for (const [key, columnId] of Object.entries(id))
     for (let page = 1; ; page++) {