fix(localizer): remove redundant PBFieldOpts concat in protogen error template

[Kybxd]

Problem

When protogen reports a field error, the rendered message duplicates the prop segment:

Workbook: Item.xlsx (alias: Item)
Worksheet: #UnionItem
NameCellPos: D9
NameCell: ItemID
TypeCellPos: D9
TypeCell: int64|{"refer:ItemConf.ID"}|"refer:ItemConf.ID"
                                          ^^^^^^^^^^^^^^^^^^^^^ duplicated
Reason: failed to parse field prop: ...

The protogen template renders TypeCell as:

TypeCell: {{.TypeCell}}{{ if .PBFieldOpts }}|{{.PBFieldOpts}}{{ end }}

Root cause

Audited every write site of xerrors.KeyTypeCell and xerrors.KeyPBFieldOpts:

Write site	Content	Contains prop?
protogen/util.go wrapDebugErr → header.getTypeCell	raw type-row line	✅ full int64|{...}
importer/book/node.go Node.DebugKV → n.Value	raw YAML/JSON scalar	✅ full int64|{...}
~25 sites writing KeyPBFieldOpts	prop.Text / desc.Prop.Text / field.opts	a substring of the above

So in the protogen path, TypeCell always already carries the prop, and PBFieldOpts is just the same substring appended again.

confgen and default templates do not reference PBFieldOpts at all, so removing the concat has no impact there.

Fix

Drop the |{{.PBFieldOpts}} suffix from TypeCell in both zh.yaml and en.yaml.

- 类型单元格数据: {{.TypeCell}}{{ if .PBFieldOpts }}|{{.PBFieldOpts}}{{ end }}
+ 类型单元格数据: {{.TypeCell}}

- TypeCell: {{.TypeCell}}{{ if .PBFieldOpts }}|{{.PBFieldOpts}}{{ end }}
+ TypeCell: {{.TypeCell}}

Why xerrors.KeyPBFieldOpts is kept

• It still appears as its own line in the debug field block (xerrors/desc.go fieldsString), useful for locating prop parsing failures — note that prop.Text has its outer {} stripped, so it isn't strictly identical to TypeCell.
• Removing the constant would force changes across ~25 call sites with no functional benefit.

After

TypeCell: int64|{"refer:ItemConf.ID"}
TypeCell: failed to parse field prop: ...

Verification

• go test ./internal/localizer/... ./internal/x/xerrors/... ✅
• go test ./internal/protogen/... ./internal/confgen/... ✅

Scope

Localized error template only; no production code changes.

[github-actions]

The latest Buf updates on your PR. Results from workflow Buf CI / buf (pull_request).

Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	✅ passed	Jun 30, 2026, 6:30 AM

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.95%. Comparing base (ba5466e) to head (c330c1a).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #423   +/-   ##
=======================================
  Coverage   74.95%   74.95%           
=======================================
  Files          88       88           
  Lines        9408     9408           
=======================================
  Hits         7052     7052           
  Misses       1784     1784           
  Partials      572      572           

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