feat(clickhouse): add premium geo columns to audit schema

[lohanidamodar]

What

Adds 9 premium geo columns to the ClickHouse audit schema (CLO-4575), so cloud can store the same premium geo attributes on audit logs that it already stores on usage events:

city, continentCode, subdivisions, isp, autonomousSystemNumber, autonomousSystemOrganization, connectionType, connectionUsageType, connectionOrganization

Changes

• Adapter/ClickHouse.php — 9 optional string attributes in getAttributes() (mirroring country); the 5 lower-cardinality dims (continentCode, subdivisions, connectionType, connectionUsageType, autonomousSystemNumber) added to LOW_CARDINALITY_COLUMNS. Picked up automatically by CREATE TABLE/getColumnDefinition(); no index/sort-key change.
• Tests extended (schema shape + LowCardinality vs Nullable classification), verified against a live ClickHouse.

Compatibility

Purely additive. Suggested release: 2.7.0 (minor). Consumers pinning ^2.4 auto-resolve.

Notes

The adapter only does CREATE TABLE IF NOT EXISTS (no ADD COLUMN path), so existing deployments need a one-off ALTER … ADD COLUMN. An idempotent ops script is kept out of this PR (untracked, credential-free, run manually).

[greptile-apps]

Greptile Summary

This PR adds 9 optional premium geo columns (city, continentCode, subdivisions, isp, autonomousSystemNumber, autonomousSystemOrganization, connectionType, connectionUsageType, connectionOrganization) to the ClickHouse audit schema, mirroring the existing country attribute definition throughout. Because getColumnDefinition(), createBatch(), and getSelectColumns() all derive their column lists dynamically from getAttributes(), no further logic changes were required.

• Schema change (ClickHouse.php): 9 new required=false string attributes appended to getAttributes(); 4 lower-cardinality dims added to LOW_CARDINALITY_COLUMNS; a comment explains why autonomousSystemNumber is intentionally excluded.
• Tests (ClickHouseTest.php): three new test methods cover attribute shape, correct LowCardinality vs Nullable(String) mapping per column, and a write/read round-trip against a live ClickHouse instance using a unique actorId.
• Migration note: the adapter only emits CREATE TABLE IF NOT EXISTS, so existing deployments require a manual ALTER TABLE … ADD COLUMN for each of the 9 new columns; this is acknowledged in the PR description.

Confidence Score: 5/5

Purely additive schema extension with no changes to existing query, insert, or selection logic.

All new columns are optional, default-null strings that slot into the existing dynamic attribute pipeline without touching any conditional logic. The four LowCardinality choices are intentional and commented. Three new tests — attribute shape, column-type classification, and a live round-trip — give good confidence the columns are correctly defined, typed, and persisted.

No files require special attention.

Important Files Changed

Filename	Overview
src/Audit/Adapter/ClickHouse.php	Adds 9 optional geo columns to getAttributes() and 4 low-cardinality entries to LOW_CARDINALITY_COLUMNS; getColumnDefinition() and createBatch() pick them up automatically with no other logic changes needed.
tests/Audit/Adapter/ClickHouseTest.php	Extends the attribute list test and adds three new targeted tests: attribute shape validation, LowCardinality vs Nullable classification, and a full write/read round-trip using a unique actorId.

_{Reviews (2): Last reviewed commit: "test(clickhouse): geo round-trip test; m..." | Re-trigger Greptile}