fix: expand us-cpa extraction review and rendering

skills/us-cpa/src/us_cpa/renderers.py

@@ -37,6 +37,32 @@ OVERLAY_FIELDS = {
 }
 
 
+FIELD_FILL_VALUES = {
+    "f1040": lambda data: {
+        "taxpayer_full_name": data["taxpayer"]["fullName"],
+        "filing_status": data["filingStatus"],
+        "wages": f"{data['income']['wages']:.2f}",
+        "taxable_interest": f"{data['income']['taxableInterest']:.2f}",
+    }
+}
+
+
+def _field_fill_page(template_path: Path, output_path: Path, form_code: str, normalized: dict[str, Any]) -> bool:
+    reader = PdfReader(str(template_path))
+    fields = reader.get_fields() or {}
+    values = FIELD_FILL_VALUES.get(form_code, lambda _: {})(normalized)
+    matched = {key: value for key, value in values.items() if key in fields}
+    if not matched:
+        return False
+
+    writer = PdfWriter(clone_from=str(template_path))
+    writer.update_page_form_field_values(writer.pages[0], matched, auto_regenerate=False)
+    writer.set_need_appearances_writer()
+    with output_path.open("wb") as handle:
+        writer.write(handle)
+    return True
+
+
 def _overlay_page(template_path: Path, output_path: Path, form_code: str, normalized: dict[str, Any]) -> None:
     reader = PdfReader(str(template_path))
     writer = PdfWriter(clone_from=str(template_path))
@@ -68,14 +94,20 @@ def render_case_forms(case_dir: Path, corpus: TaxYearCorpus, normalized: dict[st
             continue
         template_path = irs_dir / f"{template_slug}.pdf"
         output_path = output_dir / f"{form_code}.pdf"
-        _overlay_page(template_path, output_path, form_code, normalized)
+        render_method = "overlay"
+        review_required = True
+        if _field_fill_page(template_path, output_path, form_code, normalized):
+            render_method = "field_fill"
+            review_required = False
+        else:
+            _overlay_page(template_path, output_path, form_code, normalized)
         artifacts.append(
             {
                 "formCode": form_code,
                 "templatePath": str(template_path),
                 "outputPath": str(output_path),
-                "renderMethod": "overlay",
-                "reviewRequired": True,
+                "renderMethod": render_method,
+                "reviewRequired": review_required,
             }
         )