Snapshot: new training tasks (balanced generation), docs

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tasks_gen/train/G1929/spec.md

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+# 1. Goal
+The view entity {{P}}I_STAR_NIGHT in package $TMP lists the stargazing nights of
+a city observatory. Today the view reads the same master table twice. Remove
+that repetition. The view keeps its name, its key element and all its element
+names. Its result must not change.
+
+# 2. Open questions
+None.
+
+# 3. Context
+A city observatory opens its domes on clear nights. Each stargazing night takes
+place in one dome and uses one telescope.
+
+Tables in package $TMP:
+
+- {{P}}NIGHT - the stargazing nights. Key NIGHT_ID (CHAR 10). Further fields:
+  DOME_ID (CHAR 4), SCOPE_ID (CHAR 4), VISITORS (INT4), NIGHT_DATE (DATS).
+- {{P}}DOME - the domes of the observatory. Key DOME_ID (CHAR 4). Further
+  fields: DOME_NAME (CHAR 30), CITY (CHAR 20), CAPACITY (INT4).
+- {{P}}SCOPE - the telescopes. Key SCOPE_ID (CHAR 4). Further fields:
+  SCOPE_NAME (CHAR 30), APERTURE_MM (INT4), MOUNT_KIND (CHAR 10).
+
+The view entity {{P}}I_STAR_NIGHT is active and reads the three tables. A report
+and an OData service consume it. Take the current source of the view as the
+definition of its result. Read the source before you touch it.
+
+# 4. Contract
+- The view entity {{P}}I_STAR_NIGHT stays in package $TMP.
+- Key element: NIGHT_ID.
+- Element names, unchanged: NIGHT_ID, DOME_ID, DOME_NAME, DOME_CITY, SCOPE_ID,
+  SCOPE_NAME, APERTURE_MM, VISITORS, NIGHT_DATE, FREE_SEATS.
+- Authorization check: #NOT_REQUIRED.
+
+# 5. Business rules
+1. The row set of the view does not change. A night appears exactly as often as
+   it appears today, and no night appears that does not appear today.
+2. Every element keeps its value. NIGHT_ID, DOME_ID, SCOPE_ID, VISITORS and
+   NIGHT_DATE come from the night. DOME_NAME and DOME_CITY describe the dome of
+   the night. SCOPE_NAME and APERTURE_MM describe the telescope of the night.
+   FREE_SEATS is the capacity of the dome minus the visitors of the night. It
+   may be negative.
+3. The element types and the meaning of the key stay as they are.
+
+# 6. Constraints
+- Release target: SAP_BASIS 816 (ABAP Platform 2025).
+- Quality goal: no master table is read more than once by the view. A master
+  table that is needed twice must still be read only once.
+- Coding standards: Clean ABAP. The view must activate without a syntax error.
+- Out of scope: {{P}}NIGHT, {{P}}DOME, {{P}}SCOPE.
+
+# 7. Acceptance
+- {{P}}I_STAR_NIGHT is active and syntax-clean.
+- All hidden tests pass.
+- Add ABAP Unit tests with CL_CDS_TEST_ENVIRONMENT in a global test class.