Add visible v1 diagnostics guardrails

src/lsp.zig

@@ -1,4 +1,5 @@
 const std = @import("std");
+const diagnostics = @import("diagnostics.zig");
 
 // Minimal LSP process lifecycle + document sync transport.
 // req: coding/003, repo/002, testing/001, testing/002, testing/003, testing/004
@@ -313,6 +314,7 @@ pub fn runDocumentSyncRowsAlloc(
         .stderr = .ignore,
     }) catch |err| {
         try rows.append(allocator, try std.fmt.allocPrint(allocator, "lsp:status:spawn_error_{s}", .{@errorName(err)}));
+        try rows.append(allocator, try diagnostics.processLimitRowAlloc(allocator, "lsp", diagnostics.process_stdout_limit, diagnostics.process_stderr_limit));
         return rows.toOwnedSlice(allocator);
     };
     defer child.kill(io);
@@ -320,6 +322,7 @@ pub fn runDocumentSyncRowsAlloc(
     child.stdin.?.writeStreamingAll(io, transcript) catch |err| {
         child.stdin.?.close(io);
         try rows.append(allocator, try std.fmt.allocPrint(allocator, "lsp:status:write_error_{s}", .{@errorName(err)}));
+        try rows.append(allocator, try diagnostics.processLimitRowAlloc(allocator, "lsp", diagnostics.process_stdout_limit, diagnostics.process_stderr_limit));
         _ = child.wait(io) catch {};
         return rows.toOwnedSlice(allocator);
     };
@@ -333,10 +336,12 @@ pub fn runDocumentSyncRowsAlloc(
 
     const term = child.wait(io) catch |err| {
         try rows.append(allocator, try std.fmt.allocPrint(allocator, "lsp:status:wait_error_{s}", .{@errorName(err)}));
+        try rows.append(allocator, try diagnostics.processLimitRowAlloc(allocator, "lsp", diagnostics.process_stdout_limit, diagnostics.process_stderr_limit));
         return rows.toOwnedSlice(allocator);
     };
     child.id = null;
     try appendTermRow(allocator, &rows, term);
+    try rows.append(allocator, try diagnostics.processLimitRowAlloc(allocator, "lsp", diagnostics.process_stdout_limit, diagnostics.process_stderr_limit));
     return rows.toOwnedSlice(allocator);
 }