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/524-423.md

@@ -0,0 +1,62 @@
+# RAMROD + ATRAZINE DF HERBICIDE
+
+- EPA Reg No: **524-423**
+- Registrant: BAYER CROPSCIENCE, LLC
+- Signal word: Danger
+- Active ingredients: Propachlor (48.1%); Atrazine (16%)
+- Label accepted: 1997-04-21
+- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000524-00423-19970421.pdf
+
+---
+RESTRICTED USE PESTICIDE 
+(ground and surface water concerns) ~ . 
+For retail sale and use only by Certified Applicators or person'sunder their direct supervision, 
+and only for those uses covered by the Certified Applicator's certification. 
+Supplemental Labeling 
+Read the entire label for Ramrod + atrazineDF herbicide before proceeding with the use directions contained in .• 
+this supplemental labeling. Follow all application directions, restrictions and precautions of the EPA registered 
+label. 
+"Laber' as used in this supplemental labeling refers to the label booklet for Ramrod + atrazine OF and this 
+supplement. 
+.-. ----, 
+CCEPTED 
+EPA Reg. No. 524423 
+Ramrod® is a registered trademark 
+of Monsanto Company. 
+'''Monsanto 
+RAMROD + ATRAZINE DF HERBICIDE 
+APPLICATION TO TILE·TERRACED FIELDS 
+Keep out of reach of Children 
+DANGER! PELIGRO! 
+In case of emergency involving this product or for user safety information 
+on this product, Call Collect, day or night (314) 6944000 
+DIRECTIONS FOR USE 
+It is a violation of Federal law to use thrsproduct in any manner inconsistent with its labeling. 
+This label must be in the possession of the user at the time of application. 
+See "GENERAL INFORMATION" and ·'APPUCATIONIt-'[F()RMATIQf\i" sec\iQDs .. ofthe labeL booklet fpr R\lmrod® 
+and atrazine OF herbic1de for essential product performance information. . , . , ' • : 
+TILE~TERRACED FIELDS CONTAINING STANDPIPES 
+To ensure protection of sufface water from runoffthrolfgh'standpipe'sandtlle outlets i~'t~tr~~~dfields.c;eotthe 
+following options may be used: .. ' . - '--;- .;;.; -' ,.--. .--- - ----
+1. Do not apply this product within 66 feer-of standpipes in tile,olJtietted terraced fields. 
+25·MAR·97 
+. • • 
+<IIi ~'! <' - - ----
+.P-'pJJF97S.doc . . .'
+
+I 
+~c~,,~ ~"~I 
+2, Apply this product to the entice tile-outletted terraced field and immediately incorporate it to a deRth of 2 - 3 
+inches in the entire tile-outletted terraced field. '" = I' 
+3. Apply this product to the entiretile-outletted terraced field under a no-till practice only when high crop residue 
+management practices are usea. High crop residue management practice is described as a crop 
+management practice where little or no crop 'residue is removed from the field during ()r after crop harvest. 
+Always consult the label for other use directions and limitations. 
+"'Ramrod is a registered trade-mark of Monsanto c.ompany. 
+©Monsanto Company 1997 
+MONSANTO COMPANY 
+ST. LOUIS, MISSOURI 63167 
+2S-MAR-97 
+" f' 
+· .. • • 
+• P-J'DF!l7S.doc . , ••