svg_candles: cautarea nivelurilor, scoasa in functie comuna; 11 generatoare reparate

Unsprezece generatoare nu mai rulau deloc la HEAD: cautau <line x1="24", iar
svg_candles scrie x1="24.0" de cand are Level.i0. Un generator mort inseamna
ca diagrama nu mai poate fi regenerata, si nimeni n-ar fi aflat pana cand ar
fi incercat cineva, peste luni.

Cele 11 copii ale aceluiasi regex au disparut: y_niveluri() si offset_render()
se agata acum de semnatura liniei de Level (stroke-width + dasharray), nu de
x-ul ei. Caz nou in selftest, cu Level(i0=) si panou de volum - combinatia la
care varianta veche fie crapa, fie prindea tacut linia de zero a volumului.

41 de SVG-uri regenerate, toate identice cu cele comise dupa normalizarea
x1=24 -> x1=24.0, deci niciun desen n-a sarit. Verificarea asta a prins o
regresie reala: la buy_doji_transe substitutia lasase scaderea veche pe randul
urmator, offsetul se scadea de doua ori si desenul urca 92 px.

Inca doua generatoare moarte din aceeasi familie, gasite pe drum
(intrarea_cazul_lui, intrarea_doua_variante): desenau peste grafic citind
ch._y() fara offset. Nu crapau zgomotos - produceau suprapuneri la 22 px.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ThN7ixZrowca8aTGrK1MUJ

gen/strategii/buy_doji_sell.svg

@@ -7,11 +7,11 @@
   <rect x="354.5" y="96.0" width="79.0" height="51.8" fill="#c00" fill-opacity="0.08" stroke="#c00" stroke-width="1"/>
   <rect x="354.5" y="147.8" width="79.0" height="51.8" fill="#188a3e" fill-opacity="0.08" stroke="#188a3e" stroke-width="1"/>
   <rect x="534.5" y="262.5" width="119.0" height="0.9" fill="#555" fill-opacity="0.08" stroke="#555" stroke-width="1"/>
-  <line x1="24" y1="96.0" x2="826" y2="96.0" stroke="#c00" stroke-width="1.5" stroke-dasharray="4 3"/>
+  <line x1="24.0" y1="96.0" x2="826" y2="96.0" stroke="#c00" stroke-width="1.5" stroke-dasharray="4 3"/>
   <text x="812" y="90.0" fill="#c00" text-anchor="end">stop 100.15</text>
-  <line x1="24" y1="147.8" x2="826" y2="147.8" stroke="#b06000" stroke-width="1.5" stroke-dasharray="4 3"/>
+  <line x1="24.0" y1="147.8" x2="826" y2="147.8" stroke="#b06000" stroke-width="1.5" stroke-dasharray="4 3"/>
   <text x="812" y="141.8" fill="#b06000" text-anchor="end">intrare short 99.00</text>
-  <line x1="24" y1="199.5" x2="826" y2="199.5" stroke="#188a3e" stroke-width="1.5" stroke-dasharray="4 3"/>
+  <line x1="24.0" y1="199.5" x2="826" y2="199.5" stroke="#188a3e" stroke-width="1.5" stroke-dasharray="4 3"/>
   <text x="812" y="193.5" fill="#188a3e" text-anchor="end">ținta 97.85</text>
   <line x1="44.0" y1="404.3" x2="44.0" y2="429.0" stroke="#1a1a1a" stroke-width="1.2"/>
   <rect x="39.5" y="417.8" width="9" height="1.6" fill="#188a3e"/>