specs + Doorpost: the roots are counted, not estimated — 1,378, not "~500"

Architecture §3.1 said the Shoresh Engine "encodes the ~500 Biblical
Hebrew triliteral roots", its file tree called Lexicon.hs "the ~500
roots with entries", and terumah §E2 listed a "~500 roots" lexicon as
material still to be consolidated (~1-2 weeks).

Since tablet 34 the roots are read, and can be counted. L1 carries
1,378: 1,243 roots under which Brown-Driver-Briggs files a lemma, and
135 words that stand alone under no root. 1,263 are triliteral, 32 have
two letters, 83 have four or more. And the engine does not hold a list
of them — it reads them from L1 (Shoresh.Lexicon, Shoresh.Roots).

- specs/shorashim_architecture.md §3.1: the Purpose sentence says where
  the roots come from and how many there are; the Lexicon.hs line in
  the file tree likewise.
- specs/shorashim_terumah.md §E2: the root lexicon is in hand (✅) —
  the OSHB Hebrew Lexicon is exactly the BDB + Strong's consolidation
  the row was waiting for; moved from "need to acquire" to "in hand".
- Doorpost @expected_hash 2f40c382… → 094b8164…, in this commit, with
  the witnessed file that moved it (architecture).

Read before committing: Elixir 461/0 on 11 of 12 runs (seed 0 ×6 and
six other seeds). One run of seed 0 reported a single failure that was
not captured and did not recur in eleven further runs; unidentified,
recorded in the build log. Pipeline image reports
specification_identity verified 094b8164… and l1_hash pass.

Left as written, and no longer true of the build: §3.1's data
structures still type a root as exactly three consonants, and its file
tree still lists data/roots.json and data/torah_refs.json, which do
not exist — the roots live in L1.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

specs/shorashim_architecture.md

@@ -108,7 +108,7 @@ Swiss or Icelandic provider, outside US legal jurisdiction. Candidates previousl
 
 **Directory:** `shorashim/shoresh-engine/`
 
-**Purpose:** Core symbolic processing unit. Encodes the ~500 Biblical Hebrew triliteral roots and seven binyanim as a typed functional system.
+**Purpose:** Core symbolic processing unit. Encodes the Biblical Hebrew roots attested in Torah and the seven binyanim as a typed functional system. The roots are not a fixed list held by the engine: they are read from L1, where each word's `shoresh` is the root under which Brown-Driver-Briggs files that word's lemma. L1 carries 1,378 of them — 1,243 roots and 135 words that stand alone under no root; 1,263 are triliteral, 32 have two letters and 83 have four or more.
 
 **Data Structures:**
 
@@ -315,7 +315,7 @@ shoresh-engine/
 ├── src/
 │   ├── Shoresh/
 │   │   ├── Types.hs          -- All data types above
-│   │   ├── Lexicon.hs        -- The ~500 roots with entries
+│   │   ├── Lexicon.hs        -- The root lexicon, read from L1 (1,378 roots)
 │   │   ├── Binyanim.hs       -- Transformation operators
 │   │   ├── Havdalah.hs       -- Separation/distinction engine
 │   │   ├── Kriah.hs          -- Naming/identification