Snapshot: new training tasks (balanced generation), docs

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

tasks_gen/train/G1949/spec.md

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+# 1. Goal
+A falconry company sends birds of prey to airfields. The birds scare other
+birds away from the runways. The company needs one row for each site with the
+work that the birds did there. A dashboard and an OData service read this data.
+The calculation must be in the database, in a CDS view.
+
+# 2. Open questions
+None.
+
+# 3. Context
+- Table {{P}}FALCON (deployment log), package $TMP. The table is active. This
+  specification does not list the columns of the table. Read the table
+  definition to find the column names.
+- One row of {{P}}FALCON is one deployment of a bird of prey at a site. The
+  table stores these values for a deployment:
+  - the site,
+  - the date of the deployment,
+  - the number of flight minutes,
+  - the number of birds that flew,
+  - the fee for one flight minute.
+
+# 4. Contract
+- Create the CDS view entity {{P}}I_HAWK_SITE in package $TMP.
+- Elements, with these names:
+  - SITE (key)
+  - DEPLOYMENTS
+  - TOTAL_MINUTES
+  - TOTAL_BIRDS
+  - TOTAL_FEE
+- No authorization check (#NOT_REQUIRED).
+
+# 5. Business rules
+1. Show one row for each site that has at least one valid deployment.
+2. A deployment with zero flight minutes is cancelled. A cancelled deployment
+   must not appear in the view and must not count in any element.
+3. DEPLOYMENTS is the number of valid deployments of the site.
+4. TOTAL_MINUTES is the sum of the flight minutes of the valid deployments of
+   the site.
+5. TOTAL_BIRDS is the sum of the birds that flew in the valid deployments of
+   the site.
+6. TOTAL_FEE is the sum of the fees of the valid deployments of the site. The
+   fee of one deployment is the number of flight minutes multiplied by the fee
+   for one flight minute. The result has 2 decimals.
+
+# 6. Constraints
+- Release target: SAP_BASIS 8.16 (ABAP Platform 2025).
+- Use "define view entity".
+- Out of scope: do not change {{P}}FALCON.
+- Do not use SAP application module data.
+
+# 7. Acceptance
+- The view is active and has no syntax error.
+- The hidden tests pass.
+- Write ABAP Unit tests with CL_CDS_TEST_ENVIRONMENT in a global test class.