K-1 shares print by value; filed documents may print the company's own EIN

The first company's P1 cutover found the K-1 worksheet printing a
member's share as typed: "50%" read from a settings file printed
0.50, the same share kept by the books as 0.5 printed 0.5. Shares now
print at least two places whatever their spelling.

Every company document now goes into the books (D-20, owner,
2026-10-17), and formation papers and plans print the company's EIN,
which the filing scan refused as a printed TIN. It now passes the
company's own EIN, as its settings hold it, printed 2-7, and nothing
else; a vault TIN is still refused (rules.md B-26). Its refusal no
longer suggests converting a file to get past it.

plan/served.md: D-20; correcting a record's source without changing
its words (P5).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T3gXMVt7XJPi6ens1or9Dj

docs/testing.md

@@ -354,6 +354,17 @@ whether a character is a digit), and `approval_gate`'s fast path (`||`
 made `&&`: with rules off or none, the probe's `approvals_missing` is
 empty either way, so only the cost differs).
 
+**After the cutover (2026-10-17).** Two fixes found by the first
+company's P1 cutover, mutation-tested on their diff (27 mutants: 22
+caught, 4 unviable, 1 equivalent): the K-1 worksheet prints a share by
+its value, at least two places ("50%" and "0.5" alike print "0.50":
+`a_share_prints_the_same_however_it_was_written`, and `spec_vault`'s
+package test), and the filing scan passes the company's own EIN printed
+2-7 and nothing else (`the_company_s_own_ein_printed_as_an_ein_passes`,
+`tests/tin_files.rs` `the_company_s_own_ein_goes_in_and_no_other`).
+Equivalent: `share_text`'s `scale() < 2` made `<= 2` (padding a
+two-place share to two places changes nothing).
+
 ## Benchmarks (baseline 2026-10-13)
 
 No budget, by decision (Stephen, 2026-10-13: the books do little work