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/G0122/spec.md

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+# 1. Goal
+
+A bike-sharing operator moves bikes between its stations. A background job
+calls one function module to apply the planned moves of the operator. The
+function module reads the planned moves and the current state of the stations
+from the database, applies the moves, and writes the new state of the stations
+back to the database. The function module returns the number of applied moves
+and the number of rejected moves.
+
+# 2. Open questions
+
+None.
+
+# 3. Context
+
+- Function group {{P}}FG_BIKE exists in package $TMP.
+- Table {{P}}STATION exists in package $TMP. It holds the current state of the
+  stations of the operator. The table is client-dependent.
+- Table {{P}}MOVE exists in package $TMP. It holds the planned moves. The table
+  is client-dependent.
+- The station IDs in {{P}}STATION are unique. The move numbers in {{P}}MOVE are
+  unique.
+- The function module reads and changes the two tables. It works on the data of
+  the current client.
+
+# 4. Contract
+
+Function module {{P}}BIKE_REBALANCE in the function group {{P}}FG_BIKE:
+
+IMPORTING
+  iv_dry_run TYPE abap_bool
+EXPORTING
+  ev_applied TYPE i
+  ev_rejected TYPE i
+
+Table {{P}}STATION:
+
+  client       (key)
+  station_id   (key) TYPE c LENGTH 6
+  station_name       TYPE c LENGTH 30
+  capacity           TYPE i
+  bikes              TYPE i
+
+Table {{P}}MOVE:
+
+  client    (key)
+  move_no   (key) TYPE i
+  source_id       TYPE c LENGTH 6
+  target_id       TYPE c LENGTH 6
+  quantity        TYPE i
+
+# 5. Business rules
+
+1. Read all rows of {{P}}STATION and all rows of {{P}}MOVE.
+2. Apply the moves in ascending order of move_no. Do not apply them in the
+   order of the table.
+3. A move is rejected if at least one of these conditions is true:
+   - quantity is less than or equal to 0;
+   - source_id and target_id are equal;
+   - source_id is not the ID of a station in {{P}}STATION;
+   - target_id is not the ID of a station in {{P}}STATION;
+   - the source station has fewer bikes than quantity;
+   - the target station has fewer free docks than quantity. The free docks of
+     a station are capacity minus bikes.
+4. A rejected move does not change any station.
+5. An accepted move subtracts quantity from the bikes of the source station
+   and adds quantity to the bikes of the target station.
+6. After the last move, the function module writes the new bikes value of the
+   stations back to {{P}}STATION. station_name and capacity do not change.
+7. If iv_dry_run is true, the function module does not change {{P}}STATION.
+8. ev_applied is the number of accepted moves. ev_rejected is the number of
+   rejected moves. Both numbers are also returned if iv_dry_run is true.
+
+# 6. Constraints
+
+- Release target: SAP_BASIS 816 (ABAP Platform 2025).
+- Package: $TMP. Do not create a transport request.
+- Clean ABAP. Keep the function module and every method below 40 statements.
+- Out of scope: do not change {{P}}STATION, {{P}}MOVE and {{P}}SEED_BIKE.
+
+# 7. Acceptance
+
+- The function module is active and has no syntax error.
+- The hidden tests pass.
+- Write ABAP Unit tests for the function module in a global test class.