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/5481-606.md

@@ -0,0 +1,133 @@
+# BACKDRAFT HERBICIDE
+
+- EPA Reg No: **5481-606**
+- Registrant: AMVAC CHEMICAL CORPORATION
+- Signal word: Caution
+- Active ingredients: Glyphosate, isopropylamine salt (14.1%); Imazaquin (2.8%)
+- Label accepted: 2002-01-14
+- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000241-00407-20020114.pdf
+
+---
+PI •••• ,..d l 0". on ,..,.,... hefo,. comDl.dntJ form. Fonn Annrov'" nMB No '07n.nneO 
+United States § Reglsttatkm 
+OPP Identifier Number 
+aEPA Environmental Protection Agency Amendment 276956 Washington, DC 20460 X Other , 
+Application for Pesticide - Section I 
+,. CompanylProduct Number 2. EPA Produot Manager 3. Proposed Cla .. ification 
+241-407 J, Tompkins 
+o None o R •• trieted 4. CompanylProduct tNeme) BACKDRAFpM Herbicide PM' 25 
+5. Name and Addre •• of Applicant Ilnclude ZIP Code) 6. Expedited Review. In accordance with FIFRA Section 3(c1l3) 
+BASF Corporation (bJ(i), my product Is similar or identical in composition and labeling 
+i P.O. Box 400 to:' NOTIFICATION Princeton, NJ 08543-0400 EPA Reg. No. 
+o ChfICk if this is a new addrllSS JAN 1 4 2002-
+Product Name 
+Section - II I 
+0 Amendment - Explain below. D Rnal printed label. in respon.e to 
+I Agency letter dated 
+D 
+Resubmiasion in respon.e to Agency letter dated 
+D 
+·Me Too· Application. I 
+0 
+Notification - Explain below. 
+D 
+Oth'r - Explain below. 
+I F 
+I Explanation: U.e additional pagees) if necessary. (For section I end Section II.) 
+Notification to update self-imposed expiration date per PR Notice 98-10. This notification is consisient with the provisions of PR Notice 
+98·10 and EPA regulations at 40 CFR 152.46, and no other changes have ileen made to the labeling or the confidential statement of 
+formula of this product. I understand that it is a violation of 18 U.S.C. Sec. 1001 to willfully make any false statement to EPA. I further 
+understand that if this notification is not consistent with the terms of PR Notice 98-10 and 40 CFR 152.46, this product may be in 
+vioiotion of FIFRA and I may be subject to enforcement action and penalties under sections 12 and 14 of FIFRA. 
+Section - III 
+t. Material Thla Produot Win Be Packaged In: 
+Child-Resistant Packaging Unit Packaging Water Solubl. Pack.glng 2. Type of Container 
+Ef
+e
+.' 
+E3 V •• 
+a 
+Ve. 
+§~~ PI •• tic No No No Gla., 
+If ·Ve,· No. per If ·Ve.· No. per Paper • Certification must Unit Packaging wgt. containar Package wgt container Other (Specify) bB submittfHI 
+I 
+, 
+L-.. 
+4. Size(s) Retail Container 5. Location of Label Directions 3. Location of Net Contents Information 
+0 o Cont.mer 
+B On Label 
+I Label . , On Labeling accompanying product 
+Uthograph o Other , 6. Manner in Which label is Affixed to Product f--
+f-- Paper Pelued I Stencied 
+Section -IV 
+,. Contact Point IComplete items dirtlctly b.low for idtlntificetion of individulll to b. conflicted, if necessary, to proCIISS thi8 "Pplid1ftion.) 
+Title T .I.pho .... ~o. qnclude Area Code) , Name 
+Rebecca L. Johnston Global Regulatory Affairs Manager ~Oa;7,111-2235 
+• .... " . 
+Certification ~. D.~. Appli~tiol'l : 
+I certify that the statements 1 have made on this form and all attachments thereto are true. accurate and complete. • -Received 
+• .. • ••••• I acknowledge that any knowingly fals8 or misleading statement may be punishable by fine or imprisonment or IStampecUo . .. both under applicable lew. • 0 
+.. ••••• 
+0 0 
+I 2. Signature 3. TiU. 0 . .... 
+~ ;I., Ljtt.'-+ltV\IJ yYY1 
+•••• Global Regulatory Affairs Manager 0 • 
+, 
+" . " . 
+~ 
+0 • 4. Typed Nome 5. Oat. 0 
+" • 
+Rebecca L. Johnston V{.(.. 2(", <MJb I 
+- - ---- .. - - - e. _ .... , . .... --.... -- _. -- ,
+
+EPA Reg. No. 241·407 
+FOR USE ON ROUNDUpl READY SOYBEANS 
+REVISED MIXING INSTRUCTIONS NOTIFICATION 
+JAN 1 4 20D2. 
+THIS LABEL EXPIRES DECEMBER 31, 2002 
+OBSERVE ALL PRECAUTIONARY STATEMENTS ON TIlE EX1REME LABEL BEFORE USING. 
+SEE TIlE EX1REME LEAHEf LABEL FOR PRECAUTIONS, WORKER PROTECTION 
+STANDARD REQUIREMENTS, APPLICATION INFORMATION, WEEDS CONTROllED, USES 
+WITH 01HER PRODUCTS AND ROTATIONAL CROP RESTRICTIONS. 
+DIRECTION FOR USE 
+It is a violation of Federal law to use this product in a manner inconsistent with its labeling. Do 
+not apply this product through any type of irrigation system. 
+This labeling must be in the possession of the user at the time of herbicide application. 
+MIXING INSTRUCTIONS 
+Fill the spray tank one-fourth to one-half full with clean water. While agitating add the required 
+amount of BACKDRAFT and then fill the remainder of the tank with water. For postemergence 
+applications, add the nonionic or organo-silicone surfactant or as last ingredient in the tank. An 
+antifoaming agent may be added to the tank if needed. Maintain agitation while spraying to 
+ensure a uniform spray mixture. 
+BURNDOWN OR POSTEMERGENCE APPLICATIONS OF BACKDRAFT REQUIRE THE 
+ADDITION OF A SURFACTANT AND FERTILIZER. 
+I. SURFACTANTS: Use a non-ionic surfactant containing at least 80% active ingredient. 
+Apply the surfactant at the rate of I pint per 100 gallons of spray mixture (0.125% v/v of 
+the spray mixture). 
+AND 
+II. FERTILIZER: Include a fertilizer in the spray solution. Add spray grade ammonium 
+sulfate at the rate of 12-15 IbllOO gallons. Instead of ammonium sulfate, a nitroge;:b~ 
+liquid fertilizer (such as 28%N, 32%N or 10-34-0) may be used at the rate of 1-2.quarts 
+per acre. Use the higher rate when weeds are under moisture or temperature stress. _. 
+(see reverse side) ... - -
+
+When mixing BACKDRAFf, while agitating, add components in the following order: 
+1) Fill spray tank 1/2 full with clean water. 
+2) Add BACKDRAFf and thoroughly mix. 
+3) Add surfactant to the spray tank. 
+4) Add fertilizer. 
+5) While agitating, fill the remainder of the tank with water. 
+When tank mixing BACKDRAFf with 2,4-D, and/or PROWL® 3.3 EC herbicide, add products 
+to the tank in the following order: 1) BACKDRAFf, 2) PROWL 3.3 EC, 3) 2,4-D, 4) surfactant, 
+and 5) fertilizer. 
+Agricultural Products 
+TM/®Trademarks of BASF Corporation 
+lRegistered Trademark of Monsanto Agricultural Products Company 
+©200 1 BASF Corporation 
+All rights reserved 
+NY A 200 1-04-1 07 -0254 
+12/12/01 
+BASF Corporation 
+P.O. Box 13528 
+Research Triangle Park. NC 27709 
+BASF