GRM-45: fix: badge regex patterns and doc_coverage double-percent

Two issues caused coverage and docs badges to show "unknown":

1. Coverage regex expected decimal (100.00%) but pytest-cov outputs
   100% when coverage is exactly 100. Made decimal part optional.

2. doc_coverage.py passed pct="100%" to a template that already had
   %, producing (100%%). Removed the redundant % from the pct variable.
   Also relaxed the doc coverage regex to not require closing ).

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

scripts/ci/doc_coverage.py

@@ -145,7 +145,7 @@ def main(docs_dir: str, fail_on_missing: bool) -> None:
             "\nDoc coverage: {covered}/{total} ({pct}%)",
             covered=covered,
             total=total,
-            pct=f"{percentage:.0f}%",
+            pct=f"{percentage:.0f}",
         )
     )
 

scripts/generate_badges.py

@@ -27,9 +27,9 @@ import click
 REPO_ROOT = Path(__file__).resolve().parent.parent
 INIT_FILE = REPO_ROOT / "src" / "gitea_runner_manager" / "__init__.py"
 
-_COVERAGE_RE = re.compile(r"TOTAL.*?(\d+\.\d+)%$")
+_COVERAGE_RE = re.compile(r"TOTAL.*?(\d+(?:\.\d+)?)%")
 _PASSED_RE = re.compile(r"(\d+) passed")
-_DOC_COVERAGE_RE = re.compile(r"Doc coverage:\s+\d+/\d+\s+\((\d+)%\)")
+_DOC_COVERAGE_RE = re.compile(r"Doc coverage:\s+\d+/\d+\s+\((\d+)%")
 
 
 def make_badge(label: str, message: str, color: str) -> dict[str, str | int]: