sync SVN r18016: editare articole in factura de vanzare, precizie pret achizitie

ROAFACTURARE 2.11.15 (r18015): programe/ofacturare_editare.prg, programe/ofacturare_stoc.prg.
docs: conventia de encoding .sc2/.vc2 corectata la cp1250; cercetarile trans-proiect mutate
din ROAFACTURARE in docs/cercetare (r18014); actualizari reguli_lucru, oracle_export,
flux-editare-vfp-text, scripturi-migrare-db, flux-modificare-stergere-nota-jurnal, todos.
.gitignore: watchdog_out si PNG-urile din rularile headless (r18008).
Text FoxBin2Prg regenerat: clase/comun.vc2, ferestre/frm_import_note_facturi_clienti.sc2,
ferestre/frm_initializare_facturi_balanta.sc2.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AV7dQbTLAqvrtQbH7zxXxw

docs/flux-editare-vfp-text.md

@@ -32,7 +32,9 @@ fals `roundtrip text1 != text2`. Ruleaza atunci cu lista rebazata:
    `vcx2txt.ps1 -Project <pjx> -ProjectRoot <root> -CacheRoot <cache> -Types vcx,scx`
 1. Baseline: `Copy-Item <f>.vc2 <f>.vc2.pre_runda<N>.bak` (in cache; la runde succesive
    necomise, diff-ul fata de HEAD ar amesteca rundele).
-2. Editare byte-safe: PowerShell `[IO.File]::ReadAllText/WriteAllText(..., GetEncoding(1252))`;
+2. Editare byte-safe: PowerShell `[IO.File]::ReadAllText/WriteAllText(..., GetEncoding(1252))` -
+   doar pentru round-trip pe octeti, NU pentru retastat literal diacritice (antetul zice
+   `CPID="1252"`, dar octetii diacriticelor sunt de fapt cp1250: `conventie_encoding_cp1252.md`).
    NU tool-ul Edit/Write (UTF-8 strica diacriticele). Continut nou ASCII, TAB-uri ca in jur,
    fara reflow (format position-sensitive, proprietati alfabetizate). Valabil si pentru `.prg`.
 3. Patch review: `git diff --no-index <bak> <editat> > docs/diff_runda<N>_<subiect>.patch`