feat: phase2 review fixes

- TIME injection: change from spaces to '2500' (hour>23) for NUMVAL trigger
- Runner: add .resolve() to work_dir to fix chdir+relative path breakage
- Coverage: per-target field overrides for DP#9-#12 (START-DATE=20240115 etc.)
- .gitignore: add compilation artifacts, temp scripts, test outputs

cobol_testgen/gcov.py

@@ -96,11 +96,18 @@ def _find_if_body_lines(source_lines: list[str], if_lineno_1: int):
     n = len(source_lines)
     for i in range(start, n):
         line = source_lines[i].upper().strip()
-        if re.match(r'\bIF\b', line) and not re.match(r'ELSE\s+IF', line, re.IGNORECASE):
+        if re.match(r'ELSE\s+IF', line, re.IGNORECASE):
+            if depth == 1:
+                else_start_0 = i
+            depth += 1
+            continue
+        if re.match(r'\bIF\b', line):
             depth += 1
         if re.match(r'END-IF', line):
             depth -= 1
-            if depth == 0:
+            if '.' in line:
+                depth = 0
+            if depth <= 0:
                 end_if_0 = i
                 break
         if depth == 1 and re.match(r'ELSE\b', line):
@@ -172,12 +179,16 @@ def mark_from_gcov(decision_points: list, gcov_data: dict[int, int],
                     dp.active_branches.add('F')
 
         elif dp.kind == 'EVALUATE':
+            for bn in dp.branch_names:
+                dp.active_branches.discard(bn)
             if count == 0:
                 continue
             for bn in dp.branch_names:
                 dp.active_branches.add(bn)
 
         elif dp.kind == 'PERFORM':
+            dp.active_branches.discard('Enter')
+            dp.active_branches.discard('Skip')
             if count > 1:
                 dp.active_branches.add('Enter')
             dp.active_branches.add('Skip')