Status slide: generated progress.svg (owner-reviewed design) in the CICS-to-Java README, refreshed nightly #5286

Owner-approved 2026-10-16: "lets post this". This includes the workflow edit below: a nightly schedule.

Turn the owner-reviewed prototype into a generated SVG that the CICS-to-Java README shows as a picture.

Prototype (reviewed design, two rounds of owner feedback): /srv/storage_16tb/projects/gitgalaxy/handoffs/progress-slide-prototype/

• render_slide.py, stdlib only;
• the inputs it ran on: progress.json, cobolrt_rules.json, milestones.json, issue_counts.json;
• the output, slide.svg, plus light and dark screenshots.

Keep the design exactly: section order, the level and status colours (validated for colour-vision deficiency in both modes), the level and status definitions, segment labels like "L3 · 13", the total row aligned with the cobolrt family bars, and the big numbers in the runtimes rows.

Do

1. Port it to tests/tools/progress_slide.py, rendering docs/language_status/progress.svg as a generated_docs.PAGES entry on the generated branch, next to progress.md.
   • It reads progress.json and cobolrt_rules.json as progress_report.py does.
   • Add the GitHub milestones and the CICS/COBOL title-search issue counts to progress_report.py's issue fetch and cache: the same GITHUB_TOKEN-on-main rule, and "not measured" offline, never a number.
   • Replace the prototype's hard-coded tables with data where data exists:
     • the era table: from era_tags.py if it carries the descriptions, otherwise keep the table in the module;
     • the runtime rows: from cobolrt families, plus the Open World epic states read from GitHub (Epic: batch utility runtime — DFSORT/SYNCSORT, IDCAMS, IEBGENER, IKJEFT01, GDGs #4890, Epic: JCL execution — step flow, COND/IF return codes, DD binding, restart/checkpoint #4891, Epic: IBM MQ runtime — MQI calls (MQOPEN/GET/PUT/CLOSE…) and MQ structures #4892, Epic: IMS runtime — DL/I database calls (PCB/SSA/status codes), PSB/DBD, later IMS TM/MFS #4893, Epic: VSAM beyond KSDS — alternate indexes, ESDS, RRDS (RBA/RRN) #4894).
2. README: in gitgalaxy/tools/cobol_to_java/README.md (and the CICS-to-Java section of README.md), add the picture linking to the full page: [![CICS to Java: where we stand](https://raw.githubusercontent.com/squid-protocol/gitgalaxy/generated/docs/language_status/progress.svg)](<the generated progress.md link #5281 uses>). Keep test_evidence_report_single_source.py and Generated progress page: burned-estate ladder, components, eras, burn-down, Gap Atlas; READMEs link it (Part of #5280) #5281's README guard green; extend them for the image link if needed, and say why.
3. Refresh: add schedule: - cron: "17 5 * * *" (nightly) to .github/workflows/generated-docs.yml, next to the existing push trigger and path filter. Add the new inputs to the path filter. A docs run on main re-renders the page and the SVG.
4. Tests:
   • it renders from fixtures, and the output is valid XML;
   • every number on the slide equals the matching progress.json value;
   • the offline "not measured" path;
   • both colour schemes are present;
   • the image link in the README.

Acceptance: after merge, the generated branch has progress.svg, both READMEs show it, the nightly run re-renders it, and the gates are green.