Add RobSeeCo (Rob-See-Co + Innotech): 130 corn/soy varieties from the seed-guide PDF (#18)

Co-authored-by: claude <claude@jpaul.io>
Co-committed-by: claude <claude@jpaul.io>

docs_mcp/lessons.md

@@ -128,12 +128,22 @@ rated. Covers brands Burrus / Power Plus / DONMARIO.
 older corn hybrids publish only partial ratings (source gap); wheat
 is identity-only.
 
+**RobSeeCo** (Rob-See-Co + Innotech): `1-9, 9 = Best` (HIGHER =
+better, same direction as Bayer / Stine-corn); `-` = not available.
+Plant Height 9=Tall, Ear Height 9=High; Planting Rate L/ML/M/MH/H;
+**Product Fit Geography A=All, C=Central, E=East, W=West, CW=Central+West**
+(a placement code, not a rating). Soy disease uses letter codes
+(R/MR/S) + an SCN source (e.g. Peking) + Rps gene. Sourced from the
+seed-guide PDF, so it's identity + structured ratings but no live web
+page per variety.
+
 **⚠️ Direction is NOT consistent across the independents.** HIGHER =
 better: Bayer, Golden Harvest, Stine(corn), ProHarvest(disease),
-Burrus(1-10), 1st Choice(0-10). LOWER = better (1 = best): NK,
-AgriPro, **Latham**. Qualitative (no direction): Stine(soy),
-ProHarvest(general/agronomic), AgriPro(agronomic), Ebbert's. A raw
-numeric rating is meaningless without its `_scale_direction`.
+Burrus(1-10), 1st Choice(0-10), **RobSeeCo(1-9)**. LOWER = better
+(1 = best): NK, AgriPro, **Latham**. Qualitative (no direction):
+Stine(soy), ProHarvest(general/agronomic), AgriPro(agronomic),
+Ebbert's. A raw numeric rating is meaningless without its
+`_scale_direction`.
 
 **Always check the chunk's "Rating scale" line or call
 `lookup_variety(source_key)` and look at `_scale_direction` if you