Snapshot: new training tasks (balanced generation), docs

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

tasks_gen/train/G1923/spec.md

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+# 1. Goal
+The CDS view entity {{P}}I_FORGE_JOB in package $TMP lists the open jobs of a
+blacksmith's forge. The current source of the view joins the same table more
+than once. Rework the view so that every source table appears in the join one
+time. The view keeps its name, its elements and its result rows.
+
+# 2. Open questions
+None.
+
+# 3. Context
+- {{P}}I_FORGE_JOB is an active CDS view entity in package $TMP.
+- The view reads three tables: {{P}}FORGJOB, {{P}}FORGART and {{P}}FORGCUS.
+- {{P}}FORGJOB holds one row for each job of the forge. Key: JOB_ID (CHAR 10).
+  Further fields: ARTICLE_ID (CHAR 10), JOB_DATE (DATS), WORK_MIN (INT4),
+  JOB_STATE (CHAR 1).
+- {{P}}FORGART holds one row for each forged article. Key: ARTICLE_ID
+  (CHAR 10). Further fields: CUSTOMER_ID (CHAR 10), ARTICLE_NAME (CHAR 20),
+  WEIGHT_KG (INT4).
+- {{P}}FORGCUS holds one row for each customer. Key: CUSTOMER_ID (CHAR 10).
+  Further fields: CUSTOMER_NAME (CHAR 20), CITY (CHAR 20).
+- A report and an OData service read the view with the element names below.
+- The current source of the view is part of the seed. Read it. It fixes the
+  result that the hidden tests expect.
+
+# 4. Contract
+- Rework {{P}}I_FORGE_JOB in package $TMP. The name does not change.
+- The elements do not change. Element names: JOB_ID (key), JOB_DATE,
+  ARTICLE_NAME, WEIGHT_KG, CUSTOMER_NAME, CITY, WORK_MIN, EFFORT.
+- The element types do not change.
+- Authorization check: #NOT_REQUIRED.
+
+# 5. Business rules
+1. The result of the view does not change. The seed source of {{P}}I_FORGE_JOB
+   is the definition of the result. Read the seed source.
+2. The number of rows, the element names and the element types stay as they
+   are today.
+
+# 6. Constraints
+- Release target: SAP_BASIS 816 (ABAP Platform 2025), client 001.
+- Quality goals:
+  - No source table of the view may appear in the join more than once.
+  - The view must stay readable and free of duplicated conditions.
+- Coding standards: Clean ABAP, no ATC priority 1 or priority 2 findings.
+- Out of scope: do not change {{P}}FORGJOB, {{P}}FORGART and {{P}}FORGCUS.
+
+# 7. Acceptance
+- The view {{P}}I_FORGE_JOB is active and free of syntax errors.
+- The hidden tests pass.
+- Write ABAP Unit tests with CL_CDS_TEST_ENVIRONMENT in a global test class.