Repoint weekly search-query report to the Gap Reports Notion page

[jpr5]

What

Consolidates the weekly and monthly reports onto a single Notion destination — the Gap Reports page (3793aa38-1852-80a5-89d3-c3d37147aa22). The weekly search-query report previously published to the old Analytics/pathfinder page (3373aa38-1852-8152-a10b-e4aa1b8a667e); it now lands on the same Gap Reports page the monthly gap-analysis already uses.

The monthly gap-analysis workflow is untouched (it already pointed at Gap Reports).

Changed locations

1. .github/workflows/weekly-search-report.yml (line 80) — NOTION_PARENT_PAGE_ID env → Gap Reports id (adjacent comment updated to match).
2. scripts/weekly-search-report/weekly-search-report.ts (line 938) — DEFAULT_PARENT_PAGE_ID fallback → Gap Reports id.

Verification

Old id — zero hits across the whole repo:

$ git grep -n "3373aa38-1852-8152-a10b-e4aa1b8a667e"
(no output — exit 1)

New id — both weekly locations now present alongside the pre-existing monthly ones:

$ git grep -n "3793aa38-1852-80a5-89d3-c3d37147aa22"
.github/workflows/monthly-gap-analysis.yml:104:          NOTION_PARENT_PAGE_ID: "3793aa38-1852-80a5-89d3-c3d37147aa22"
.github/workflows/weekly-search-report.yml:80:          NOTION_PARENT_PAGE_ID: "3793aa38-1852-80a5-89d3-c3d37147aa22"
scripts/gap-analysis/README.md:71:(`3793aa38-1852-80a5-89d3-c3d37147aa22`) and can be overridden with the
scripts/gap-analysis/monthly-gap-analysis.ts:126:  process.env.NOTION_PARENT_PAGE_ID ?? "3793aa38-1852-80a5-89d3-c3d37147aa22";
scripts/weekly-search-report/weekly-search-report.ts:938:const DEFAULT_PARENT_PAGE_ID = "3793aa38-1852-80a5-89d3-c3d37147aa22";

The weekly script has no --dry-run mode, so no live run was performed (that would post to Slack #engr and publish a real Notion page). Verification is grep/inspection-based.

Quality gate: prettier clean on the edited TS file, tsc --noEmit clean, full test suite green (3554 passed / 1 skipped).