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/G0116/spec.md

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+# 1. Goal
+A regional bus company collects the departure timetables of its depots. The
+planning office needs one class that stores the departures of all depots and
+answers two questions: which departure comes next at a stop, and which
+departures a stop has.
+
+# 2. Open questions
+None.
+
+# 3. Context
+- Package $TMP, client 001, SAP_BASIS 816.
+- There are no seed objects. The class is new.
+- A departure has a stop, a line, a departure time and the depot that reported
+  it.
+
+# 4. Contract
+Create the class {{P}}DEPARTURE_PLANNER in package $TMP.
+The class is public and final. It has a public constructor without parameters.
+
+The class declares these public types:
+- TY_STOP: character, length 4.
+- TY_LINE: character, length 6.
+- TY_DEPOT: character, length 4.
+- TY_TIME: a time of the system (type T, format HHMMSS).
+- TY_DEPARTURE: a structure with the components STOP (TY_STOP), LINE (TY_LINE),
+  DEPART (TY_TIME) and DEPOT (TY_DEPOT), in this order.
+- TT_DEPARTURES: a standard table of TY_DEPARTURE with an empty key.
+
+The class has exactly these public methods:
+- CONSTRUCTOR: no parameters.
+- ADD_DEPOT: importing IV_DEPOT type TY_DEPOT and IT_DEPARTURES type
+  TT_DEPARTURES. No returning parameter.
+- NEXT_DEPARTURE: importing IV_STOP type TY_STOP and IV_FROM type TY_TIME.
+  Returning RS_DEPARTURE type TY_DEPARTURE.
+- DEPARTURES_AT_STOP: importing IV_STOP type TY_STOP. Returning RT_DEPARTURES
+  type TT_DEPARTURES.
+- COUNT: no importing parameter. Returning RV_COUNT type I.
+
+Do not add other public methods.
+
+# 5. Business rules
+1. ADD_DEPOT stores the departures of the given depot. The DEPOT component of
+   the input rows is not used. The class stores IV_DEPOT in the DEPOT component.
+2. Two departures are equal if STOP, LINE and DEPART are equal. If an equal
+   departure is already stored, the new departure is ignored and the stored
+   departure does not change. This rule also applies to equal departures inside
+   one call of ADD_DEPOT.
+3. COUNT returns the number of stored departures.
+4. NEXT_DEPARTURE returns the stored departure of the given stop with the
+   smallest DEPART that is not before IV_FROM. "Not before" means
+   DEPART >= IV_FROM. If the stop has no such departure, the result is initial.
+5. DEPARTURES_AT_STOP returns all stored departures of the given stop in
+   ascending order of DEPART. If two departures have the same DEPART, the
+   departure with the smaller LINE comes first. If the stop is not stored, the
+   result is empty.
+6. An empty input table changes nothing.
+
+# 6. Constraints
+- Release target: 8.16.
+- Coding standards: Clean ABAP. Method length below 40 statements. No global
+  variables. No comment that restates the code.
+- Out of scope: no database access, no user interface, no change to other
+  objects.
+
+# 7. Acceptance
+- The class is active and has no syntax error.
+- The hidden tests pass.
+- Write your own ABAP Unit tests for the class.