Tier 17.2: F3.2 sub-tier 2 — fact_option_allocations columns (3 cols)

[jamezycesar-collab]

Summary

Second sub-tier of WS2 F3.2 follow-on. Adds 3 spec-mapping columns to fact_option_allocations across all four dialects.

Files changed

• ddl/option/02_option_gold_delta.sql - add 3 columns
• ddl/option/04_option_gold_hive.sql - add 3 columns
• ddl/option/05_option_silver_fabric_lakehouse.sql - add 3 columns
• ddl/option/06_option_fabric_warehouse.sql - add 3 columns
• guardrails/known_field_mapping_gaps.csv - 89 → 86 rows
• CHANGELOG.md - Tier 17.2 entry

Columns added

Gold column	Type	Spec section (PDF-verified)	Event
allocation_key_date	TIMESTAMP / DATETIME2(7), NOT NULL	§5.1.13.1 row 6	MOPA / MOAA
prior_allocation_key_date	TIMESTAMP / DATETIME2(7), nullable	§5.1.13.2 row 8	MOAA
allocation_instruction_time	TIMESTAMP / DATETIME2(7), nullable	§5.1.13.1 row 24	MOPA / MOAA

No mapping CSV fixes this sub-tier

All 3 mapping CSV section refs verified correct against the spec PDF. The earlier verifier flag on allocation_key_date (§5.1.13 vs §5.1.13.1) was a boundary artifact at the section header page transition; the actual field-table row is in §5.1.13.1 as the mapping CSV claims.

Coverage

All 8 guardrails:                  pass (exit 0)
known_field_mapping_gaps.csv:    86 (was 89; -3)
  F3.1 phantom-table rows:        0 (unchanged - cleared in Tier 13-16)
  F3.2 missing-column rows:      86 (was 89)
DDL files in parity scope:        22 (unchanged)
Tables in 2+ dialects:            42 (unchanged - same tables, new columns)
New parity violations:             0

F3.2 burndown progress

Sub-tier	Host table	Cols	Allowlist	Status
Tier 17.1	fact_option_executions	3	92 → 89	✅
Tier 17.2 (this)	fact_option_allocations	3	89 → 86	✅
Tier 17.3	fact_multileg_option_legs	5	86 → 81	next
Tier 17.4	fact_option_order_events	30	81 → 51	queued
Tier 17.5	fact_multileg_option_events	51	51 → 0	queued

Test plan

• All 8 guardrails pass (exit 0)
• No new parity violations
• 3 fact_option_allocations mapping rows now resolve in DDL
• PDF spot-check confirmed all 3 mapping CSV section refs are correct
• Recurrence-safe precheck in push script