Fix super() inheritance chain lookup and dogfood harness

Compiler fix:
- Fix ValidateSuperMemberAccess in TypeChecker.Utilities.cs to traverse
  the full inheritance chain when looking up methods called via super()
- Previously only checked direct parent class, now uses FindMethodInHierarchy
- Also fixes field lookup to check full hierarchy

Dogfood harness fix:
- Add _strip_compilation_header() in compiler.py to strip "Successfully
  compiled" and "=== Running Program ===" headers from execution output
- Applied to both run_file() and run_project() methods

Test additions (17 new file-based integration tests):
- basics/augmented_assignment_divide_mod.spy
- classes/bool_access_control.spy
- classes/class_bank_account.spy
- classes/class_field_access_scale.spy
- classes/class_math_utils.spy
- classes/class_rectangle_init.spy
- classes/class_rectangle_simple.spy
- classes/class_temperature_converter.spy
- enums/enum_to_int_coercion.spy
- enums/enum_traffic_light.spy
- functions/function_add_three_numbers.spy
- functions/function_calling_function_complex.spy
- functions/function_square_add_squares.spy
- inheritance/super_grandparent_method.spy
- inheritance/virtual_override_calculator.spy
- inheritance/virtual_override_shapes.spy
- structs/struct_point_value_semantics.spy

Cleanup:
- Remove resolved dogfood issues and successes (converted to tests)
- Update dogfood_output/SUMMARY.md with completion status

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: antonsynd

build_tools/sharpy_dogfood/compiler.py

@@ -35,6 +35,30 @@ class ExecutionResult:
     timed_out: bool = False
 
 
+def _strip_compilation_header(output: str) -> str:
+    """Strip the compilation success message and '=== Running Program ===' header.
+
+    The Sharpy CLI outputs:
+        Successfully compiled to: /path/to/file.exe
+
+        === Running Program ===
+
+        <actual program output>
+
+    This function extracts only the actual program output.
+    """
+    # Look for the "=== Running Program ===" marker
+    marker = "=== Running Program ==="
+    marker_idx = output.find(marker)
+    if marker_idx != -1:
+        # Skip the marker and any following newlines
+        program_output = output[marker_idx + len(marker) :]
+        # Strip leading whitespace/newlines but preserve trailing newline structure
+        return program_output.lstrip("\n")
+    # If no marker found, return original output (might be an error case)
+    return output
+
+
 class SharpyCompiler:
     """Interface to the Sharpy compiler."""
 
@@ -173,14 +197,14 @@ async def run_file(
             if process.returncode == 0:
                 return ExecutionResult(
                     success=True,
-                    output=stdout_text,
+                    output=_strip_compilation_header(stdout_text),
                     exit_code=process.returncode,
                     duration_seconds=duration,
                 )
             else:
                 return ExecutionResult(
                     success=False,
-                    output=stdout_text,
+                    output=_strip_compilation_header(stdout_text),
                     error=stderr_text or stdout_text,
                     exit_code=process.returncode,
                     duration_seconds=duration,
@@ -266,14 +290,14 @@ async def run_project(
             if process.returncode == 0:
                 return ExecutionResult(
                     success=True,
-                    output=stdout_text,
+                    output=_strip_compilation_header(stdout_text),
                     exit_code=process.returncode,
                     duration_seconds=duration,
                 )
             else:
                 return ExecutionResult(
                     success=False,
-                    output=stdout_text,
+                    output=_strip_compilation_header(stdout_text),
                     error=stderr_text or stdout_text,
                     exit_code=process.returncode,
                     duration_seconds=duration,