Fix coverage with several contract classes; table annotation and file path checks; clean task dir on write

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014aUaQeLnwbb1zTpN7kHeat

tasks_gen/eval/G0117/spec.md

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+# 1. Goal
+
+A tool crib lends workshop tools to employees. A shop-floor terminal calls one
+class to record the loans and the returns and to show the open loans. The class
+keeps the loans in memory.
+
+# 2. Open questions
+
+None.
+
+# 3. Context
+
+- All objects are in package $TMP. No transport is necessary.
+- The class {{P}}TOOL_MASTER exists in package $TMP. It is active. It has the
+  public type TY_TOOL_ID (character-like, length 10) and the static method
+  IS_VALID_TOOL. IS_VALID_TOOL has the importing parameter IV_TOOL_ID
+  (TY_TOOL_ID) and the returning parameter RV_VALID (abap_bool). The method
+  ignores spaces and letter case. It returns abap_true only for the tools that
+  the crib has in stock.
+- The terminal creates one instance of the new class for each shift. There is
+  no database table. All loans live in the instance.
+
+# 4. Contract
+
+Create the class {{P}}TOOL_CRIB in package $TMP.
+
+The class is public and final. An instance is created without parameters.
+
+Public types:
+- TY_TOOL_ID: character-like, length 10.
+- TY_EMPLOYEE: character-like, length 20.
+- TY_LOAN: structure with the components TOOL_ID (TY_TOOL_ID), EMPLOYEE
+  (TY_EMPLOYEE) and DUE_DATE (type D).
+- TT_LOANS: table type with the row type TY_LOAN.
+
+Public methods:
+- LEND, importing IV_TOOL_ID (TY_TOOL_ID), IV_EMPLOYEE (TY_EMPLOYEE) and
+  IV_DUE_DATE (D), returning RV_ACCEPTED (abap_bool).
+- RETURN_TOOL, importing IV_TOOL_ID (TY_TOOL_ID), returning RV_FOUND
+  (abap_bool).
+- IS_ON_LOAN, importing IV_TOOL_ID (TY_TOOL_ID), returning RV_ON_LOAN
+  (abap_bool).
+- OPEN_LOANS, returning RT_LOANS (TT_LOANS).
+- OVERDUE_LOANS, importing IV_TODAY (D), returning RT_LOANS (TT_LOANS).
+
+Do not add other public components.
+
+# 5. Business rules
+
+Normalization:
+1. The normalized tool ID is the tool ID without spaces and in upper case.
+2. The normalized employee is the employee without spaces and in upper case.
+
+LEND applies these steps in this sequence. It stops at the first step that
+rejects the loan.
+3. If the normalized tool ID is empty, reject.
+4. If the normalized employee is empty, reject.
+5. If the due date is initial, reject.
+6. If {{P}}TOOL_MASTER=>IS_VALID_TOOL returns abap_false for the normalized tool
+   ID, reject.
+7. If the normalized tool ID is already on loan, reject.
+8. Else record the loan with the normalized tool ID, the normalized employee
+   and the due date. Accept the loan.
+
+Reject means: return abap_false and do not change the loans.
+
+9. RETURN_TOOL: if the normalized tool ID is on loan, delete the loan and
+   return abap_true. Else return abap_false. An empty normalized tool ID
+   returns abap_false.
+10. IS_ON_LOAN: return abap_true if the normalized tool ID is on loan. Else
+    return abap_false. An empty normalized tool ID returns abap_false.
+11. OPEN_LOANS returns one row for each open loan. The rows are ordered by
+    DUE_DATE in ascending order. Rows with the same DUE_DATE are ordered by
+    TOOL_ID in ascending order.
+12. OVERDUE_LOANS returns the open loans with a DUE_DATE before IV_TODAY. If
+    IV_TODAY is initial, the result is empty. The rows have the same order as
+    in OPEN_LOANS.
+13. A due date in the past is permitted at LEND. Such a loan appears in
+    OVERDUE_LOANS.
+14. A new instance has no loans.
+
+# 6. Constraints
+
+- Release target: SAP_BASIS 8.16.
+- Coding standards: Clean ABAP. Methods below 40 statements. No global
+  variables. No comment that restates the code.
+- Out of scope: do not change {{P}}TOOL_MASTER.
+
+# 7. Acceptance
+
+- The class is active and has no syntax error.
+- The hidden tests pass.
+- Write your own ABAP Unit tests for the class.