fix(#983): rewrite bare .claude paths in Trae/Windsurf converters (Codex/Cline parity) (#995)

* fix(#983): rewrite bare .claude paths in Trae/Windsurf converters (Codex/Cline parity)

Both convertClaudeToWindsurfMarkdown and convertClaudeToTraeMarkdown only
handled trailing-slash .claude/ forms; bare ~/.claude and $HOME/.claude
references (e.g. configDir = ~/.claude, RUNTIME_CONFIG_DIR=".../$HOME/.claude")
survived conversion and pointed users at the wrong config dir.

Fix: add bare-form replacements using negative lookahead (?![\w-]) to protect
.claude-plugin and .claudeignore, mirroring Cline (#782) and Codex (#570) precedent.
Also adds CLAUDE_CONFIG_DIR -> WINDSURF_CONFIG_DIR / TRAE_CONFIG_DIR rewrite.
_applyRuntimeRewrites windsurf case gets matching \b-anchored bare-form lines,
mirroring the existing trae case.

Closes #983

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* chore(#983): backfill changeset pr number (995)

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

scripts/lint-regression-test-names.allowlist.json

@@ -263,5 +263,6 @@
   "bug-967-verify-key-links-strict-paths.test.cjs",
   "bug-974-graphify-budget-missing-value.test.cjs",
   "bug-977-fnm-multishell-path.test.cjs",
-  "bug-978-milestone-complete-force.test.cjs"
+  "bug-978-milestone-complete-force.test.cjs",
+  "bug-983-trae-windsurf-claude-path-leak.test.cjs"
 ]