quantmodel — Data coverage status page: ticker/indicator download spans + limiting factor on strategy pages

Objective

Data coverage status page: ticker/indicator download spans + limiting factor on strategy pages.

Notes: coverage.html + coverage.json; limiting callouts on 102 strategy pages. Binding limiters: BIL×24, GLD×14, SPY×9. CLI: python3 -m research.reports coverage. Findings: data-coverage-t156.md. 19 report tests pass.

Approach

Reuses existing report research/findings/data-coverage-t156.md — tables/metrics preserved verbatim via source_report pointer. Body below summarizes grounded evidence from that report and adjacent artifacts.

Files / code / data changed

Associated commits (inferred from log grep t156):

2ab639b5 research: note README dedupe pending; refine t156 handoff context
d45b978c research: t156 data coverage page + limiting callouts (#149)
2ab639b5 research: note README dedupe pending; refine t156 handoff context
Source report: research/findings/data-coverage-t156.md
Task-history entry: research/findings/task-history.json#t156

Results

Key table from source report (preserved):

Path	Role
`docs/coverage.html`	Coverage status shell (`QMSite.mountCoveragePage`)
`docs/site-data/coverage.json`	Instruments + macros + per-strategy limiting factors
`research/reports/coverage.py`	Build payload / render page / patch strategy JSONs
`docs/assets/js/site.js`	`mountCoveragePage` + `fillLimitingCallout`
Strategy pages / `_template`	Limiting callout + Coverage nav link
CLI	`python3 -m research.reports coverage` (also on full `render` / `build --render`)
`tests/test_reports_coverage.py`	6 tests

Conclusions and metrics are in research/findings/data-coverage-t156.md; see detail page for preserved tables/metrics.

Conclusions

[reconstructed — uncertain] Outcome inferred from status done and task note.

Problems / follow-ups

See source report or PR discussion for follow-ups. No unsupported follow-ups fabricated.