Add visible v1 diagnostics guardrails

src/job.zig

@@ -1,4 +1,5 @@
 const std = @import("std");
+const diagnostics = @import("diagnostics.zig");
 
 // Explicit local build/test job execution for the shared panel model.
 // req: repo/002, ui/002, testing/001, testing/002, testing/003, testing/004
@@ -57,10 +58,11 @@ fn runRowsWithPreviewAlloc(
     const result = std.process.run(allocator, io, .{
         .argv = argv,
         .cwd = .{ .path = cwd },
-        .stdout_limit = .limited(256 * 1024),
-        .stderr_limit = .limited(256 * 1024),
+        .stdout_limit = .limited(diagnostics.process_stdout_limit),
+        .stderr_limit = .limited(diagnostics.process_stderr_limit),
     }) catch |err| {
         try rows.append(allocator, try std.fmt.allocPrint(allocator, "{s}:status:spawn_error_{s}", .{ kind, @errorName(err) }));
+        try rows.append(allocator, try diagnostics.processLimitRowAlloc(allocator, kind, diagnostics.process_stdout_limit, diagnostics.process_stderr_limit));
         return rows.toOwnedSlice(allocator);
     };
     defer allocator.free(result.stdout);
@@ -70,6 +72,7 @@ fn runRowsWithPreviewAlloc(
     try appendOutputRows(allocator, &rows, "stdout", result.stdout);
     try appendOutputRows(allocator, &rows, "stderr", result.stderr);
     if (rows.items.len == 2) try rows.append(allocator, try std.fmt.allocPrint(allocator, "{s}:output_empty", .{kind}));
+    try rows.append(allocator, try diagnostics.processLimitRowAlloc(allocator, kind, diagnostics.process_stdout_limit, diagnostics.process_stderr_limit));
     return rows.toOwnedSlice(allocator);
 }