docker: production image + Gitea Actions for monthly refresh

Dockerfile: self-contained image with corpus + Chroma + BM25 baked
in. Drawbar's compose pulls + runs without volume mounts. Built from
sources.json (labels schema), PRODUCT_NAME=crop_chem by default,
HYBRID_SEARCH=true (always-on for production quality). RERANK_URL +
OLLAMA_URL get set at compose time.

.gitea/workflows/refresh.yml: monthly cron (1st @ 06:00 UTC) does
full scrape → reindex → image push. Scrapes Bayer (~30 min) +
EPA PPLS row-crop filtered (~7h). Skips reindex+push if no corpus
diff. Tags pushed: :latest, :<sha12>, :corpus-<YYYY.MM.DD>.

.gitea/workflows/image-only.yml: on-demand or auto on code-only
pushes to main (paths: docs_mcp/, rag/, scrape/, requirements.txt,
Dockerfile, sources.json). Reindexes from committed corpus, builds
image, pushes. ~10 min vs ~9h full refresh.

.gitignore: corpus/ now COMMITTED (4,159 labels, 265 MB of .md +
sidecars). Lets image-only.yml rebuild indexes without re-scraping.
chroma/ + bm25/ still gitignored (regenerable binary indexes).

.dockerignore: drops venv, eval results, PLAN/README/CLAUDE.md,
deploy/, .git/ — keeps the image lean. corpus + chroma + bm25
explicitly NOT in dockerignore (those go INTO the image).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

corpus/epa_ppls/34704-28.md

@@ -0,0 +1,149 @@
+# CLEAN CROP IBP-2A GRAIN PRESERVATIVE
+
+- EPA Reg No: **34704-28**
+- Registrant: LOVELAND PRODUCTS, INC.
+- Signal word: Warning
+- Active ingredients: Propionic acid (18.8%); Isobutyric acid (28.2%)
+- Label accepted: 1975-03-04
+- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/034704-00028-19750304.pdf
+
+---
+I 
+,-CCEP-TED 
+... . .. 
+-. 
+\ 
+. , , 
+CLEAN CROP' 
+18P-2A GRAIN PRESERVATIVE 
+WARNING! CAUSES IRRITATION 
+KEEP OUT OF REACH OF CHILDREN 
+Do Not Get I n Eyes, On Skin Or Clothing. 
+Keep Container Closed. 
+Use Adequate Ventilation. 
+Wash Thoroughly After Handling. 
+Spillage Should Be Neutralized With Sodium 
+Carbonate, Sodium Bicarbonate, Chalk Or 
+Agricultural Lime. Or Washed Away With 
+Plenty of Water. 
+Do Not Contaminate Water By Cleaning Of 
+Equipment Or Disposal of Wastes. 
+FIRST AID: In case of contact, immediately flush 
+eyes or skin with plenty of water for at least 15 min· 
+utes while removing clothing and shoes. Call a Physi· 
+clan. Wash clothing before reuse. 
+NOTICE 
+Do nOI reuse empty drum. Return 10 Drum recon· 
+dlllOI1<'r or destroy by perforating or crushing and 
+burylllg In a safe place aw~v from water sunplies. 
+NOTICE 
+Eldlcon", Chemicals, I nco warrants that thiS material conforms 
+'0 thf" chen-Heal description on the labcl and IS reasonably fit 
+for the purposes referred to In the d-lrectlOns for use, ThiS 
+orodlJct IS 'iOld subject to the understanding that the buyer 
+aSSuJlle~ all risks of use or handling which may result In loss 
+or darnitge which are beyond the control of the seller. such dS 
+for example Incompatibility With other products, the manner 
+of Its use or ap~ltcatlon, or the presence of other products 
+or m(ltertals In or on the 5011 or crop. Balcom Chemicals, Inc. 
+makes no other express or Implied warranty of fltne~s or 
+merchant,lbllity. The e;w.:clus.lve remedy of the user or buyer, 
+dnd the limit of the liability of Balcom Chemicals, inc. or any 
+other seller, for any clf"!d all losses, injuries or damdyes resulting 
+from the u'" 01 handling of this product shall bp the purchase 
+price DiUd by the user or buyer of the quantity of thiS pr(1· 
+duct Involved. The buyer and all users are deemed 10 h.lve 
+Jeeepted the terms of thiS notice, which may not be viHled 
+by any verbal Or wrllten agreement. 
+A fungicidal mixture of organic acids for treating 
+certain small grains as a preservative for storage. 
+ACTIVE INGREDIENTS 
+Isobutyric Acid ....•........... 
+Propionic Acid .......•....•• 
+INERT INGREDIENTS ............. . 
+28.2% 
+18.8% 
+53.0% 
+100.0% 
+WARNING! CAUSES IRRITATION. 
+KEEP OUT OF REACH OF CHILDREN. 
+See side panels for Additional Precautions. 
+EPA Reg. No. 960-196 
+EPA Est. No. 00960-CO-Ol 
+00960-CO-02 
+NET CONTENTS gals. __ _ __ Ibs. 
+DIRECTIONS FOR USE 
+BIN PREPARA nON 
+As with other hlends of dcids, CLEAN CROP IBP2A 
+Grain Preservative IS corrosive. Bins should be protec· 
+ted by lining with non·toxic plastic sheeting lJpfore 
+filling. 
+APPLICA nON 
+CLEAN CROP IBp·2A Grain Preservative IS sU!Jgeste<t 
+for applicatIOn as directed below irr,medlatel',I after 
+harvest to prevent fungal growth in these stored grains: 
+j ,uid oz per 100 Ibs. of grain with the 
+following respective percent moisture contents. 
+Grain 
+16% 
+18% 
+20% 
+22% 
+28% 
+30% 
+32% 
+34% 
+36% 
+NOTE: 
+Corn 
+9.1 
+13.1 
+17.2 
+21.2 
+25.3 
+29.4 
+33.4 
+37.5 
+41.5 
+45.6 
+Sorghum 
+12.3 
+14.7 
+17.0 
+19.4 
+21.6 
+23.9 
+26.2 
+Wheat 
+&Oats 
+14.7 
+17.2 
+19.7 
+22.2 
+24.7 
+27.2 
+29.7 
+Barley 
+12.2 
+15.6 
+18.9 
+22.3 
+25.6 
+29.0 
+32.3 
+FI. oz. productilOO Ibs. g"lIn x 1.28 ~ Ibs. product per 
+ton gram. 
+Apply undilute<I, by use of low pressure spray nOlo 
+lies achieving uniform coverage, asgrain passes through 
+applicator. Stop grain flow immediately in event of 
+spray failure or nOI zle plugging. Concentrations of 
+untreated grain may develop fungal growth which 
+spreads and may spoil all grain in the bin. ONLY 
+GRAiN WHICH IS TO BE USED AS ANIMAL FEED 
+SHOULD BE TREATED since application will reduce 
+grains to Sample Grade and re<luce germination. In· 
+creasing the suggested rate of application in the Table 
+by 25% for the top 10% of the grain placed in each 
+storage bin will provide additional protection against 
+the effect of normal moisture migratIOn in the grain 
+during storage.