[Code Quality] Rename TitlePrefix field to DefaultTitlePrefix to disambiguate two unrelated concepts

[github-actions]

Description

A Go type consistency audit (discussion #50840) found the field name TitlePrefix reused for two unrelated concepts across 8 structs in pkg/workflow: a "default title for new content" meaning in create_issue.go, create_discussion.go, create_pull_request.go, create_project.go, versus a "required-title-prefix validation"/deprecated-filter-alias meaning in push_to_pull_request_branch.go, missing_issue_reporting.go, update_issue.go, and safe_outputs_parser.go's SafeOutputFilterConfig.TitlePrefix. Same field name, different semantics, risks confusing future maintainers.

Suggested Changes

• Rename the "default title for new content" variant (in create_issue/create_discussion/create_pull_request/create_project) to DefaultTitlePrefix
• Have update_issue.go embed SafeOutputFilterConfig instead of redeclaring its own TitlePrefix
• Update yaml tags/docs/tests referencing the old field name where applicable

Files Affected

• pkg/workflow/create_pull_request.go:36
• pkg/workflow/create_issue.go:14
• pkg/workflow/create_discussion.go:16
• pkg/workflow/create_project.go:12
• pkg/workflow/push_to_pull_request_branch.go:17
• pkg/workflow/missing_issue_reporting.go:20
• pkg/workflow/update_issue.go:19
• pkg/workflow/safe_outputs_parser.go:20

Success Criteria

• DefaultTitlePrefix used consistently for the "default title" semantic across the 4 create_* structs
• update_issue.go embeds SafeOutputFilterConfig rather than redeclaring TitlePrefix
• make test-unit passes with no regressions
• make fmt run after edits

Source

Extracted from Typist - Go Type Consistency Analysis (discussion #50840)

Priority

Medium - improves maintainability, moderate effort (2-3 hours per audit estimate)

🔍 Task mining by Discussion Task Miner - Code Quality Improvement Agent · auto · 35.3 AIC · ⌖ 4.12 AIC · ⊞ 10.2K · ◷

• expires on Aug 7, 2026, 5:44 PM UTC-08:00

[github-actions]

This issue was automatically closed because it expired on 2026-08-08T01:44:04.880Z.

Closed by Workflow