Add live QC Status Matrix page + nav link

[tkolberg]

What

A new live CGI page — QC Status Matrix — showing every board × every test type in a single grid, reachable from the site nav (Summary ▾ → QC Status Matrix, and the footer).

Requested view: if a board ever passed a test, it counts as passed; mark it failed only if every attempt failed; mark it not-yet-run if it was never tried. Chip IDs (ECON, LDO, lpGBT) are shown per board where recorded.

Cell scoring

• ✓ pass — passed at least once in the board's full test history
• ✕ fail — attempted but failed every time
• ○ not yet run — no test row, but the test is in this board type's set
• · N/A — test isn't part of this board type's set (Type_test_stitch)

Against live mbdb today: 531 passed · 105 failed · 58 not-yet-run across 65 boards × 18 test types.

Chip IDs

• ECON (U251_T1 / U251_T2) and LDO (U661 / U681) serials from Board_component (photograph station) — 29 boards scanned.
• lpGBT ID recovered from each board's most recent test-data attachment ($.test_data.DAQ.id, the same source get_sn_from_lpgbt_id uses), shown in hex — 34 boards.

Files

• cgi-bin/mbDB/qc_matrix.py — CGI entry point (mirrors search.py).
• cgi-bin/mbDB/qc_matrix_functions.py — gathers data + renders the grid (sticky headers, rotated test labels, sticky Full-ID column, per-board progress bar). Scoped <style> under .qcm so it doesn't touch the rest of the site.
• cgi-bin/mbDB/base.py — link added to the Summary nav dropdown + footer. (There is no dashboard.py; the nav is the site-wide entry point.)

Read-only (connect(0) / testreader). No schema or data changes.

Notes for review

• "Ever passed" deliberately shows green even if the board also failed that test on other attempts — this hides flaky history by design (matches the request). Easy to add a marker for passed-but-also-failed cells if wanted.
• Uses full test history, so results can differ from the latest-attempt logic on the Board Summary page.

🤖 Generated with Claude Code