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_labu.svg

@@ -10,16 +10,16 @@
   <text x="559.5" y="111.8" fill="#188a3e" style="font-weight:bold">3. trendul pornește</text>
   <rect x="859.5" y="69.6" width="34.0" height="51.2" fill="#1a5fb4" fill-opacity="0.08" stroke="#1a5fb4" stroke-width="1"/>
   <text x="859.5" y="64.6" fill="#1a5fb4" style="font-weight:bold">4. ținta</text>
-  <line x1="24" y1="332.8" x2="976" y2="332.8" stroke="#777" stroke-width="1.5" stroke-dasharray="4 3"/>
-  <text x="30" y="326.8" fill="#777">pivot lunar 86.00</text>
-  <line x1="24" y1="369.2" x2="976" y2="369.2" stroke="#c00" stroke-width="1.5" stroke-dasharray="4 3"/>
-  <text x="30" y="363.2" fill="#c00">stop 81.45 = 9 % sub intrare (procent real)</text>
-  <line x1="24" y1="304.8" x2="976" y2="304.8" stroke="#188a3e" stroke-width="1.5" stroke-dasharray="4 3"/>
+  <line x1="24.0" y1="332.8" x2="976" y2="332.8" stroke="#777" stroke-width="1.5" stroke-dasharray="4 3"/>
+  <text x="30.0" y="326.8" fill="#777">pivot lunar 86.00</text>
+  <line x1="24.0" y1="369.2" x2="976" y2="369.2" stroke="#c00" stroke-width="1.5" stroke-dasharray="4 3"/>
+  <text x="30.0" y="363.2" fill="#c00">stop 81.45 = 9 % sub intrare (procent real)</text>
+  <line x1="24.0" y1="304.8" x2="976" y2="304.8" stroke="#188a3e" stroke-width="1.5" stroke-dasharray="4 3"/>
   <text x="962" y="298.8" fill="#188a3e" text-anchor="end">intrare 89.50</text>
-  <line x1="24" y1="240.4" x2="976" y2="240.4" stroke="#777" stroke-width="1.5" stroke-dasharray="2 3"/>
-  <text x="30" y="234.4" fill="#777">ținta 1:1 97.55</text>
-  <line x1="24" y1="90.0" x2="976" y2="90.0" stroke="#1a5fb4" stroke-width="1.5" stroke-dasharray="4 3"/>
-  <text x="30" y="84.0" fill="#1a5fb4">116.35 = +30 % față de intrare (procent real)</text>
+  <line x1="24.0" y1="240.4" x2="976" y2="240.4" stroke="#777" stroke-width="1.5" stroke-dasharray="2 3"/>
+  <text x="30.0" y="234.4" fill="#777">ținta 1:1 97.55</text>
+  <line x1="24.0" y1="90.0" x2="976" y2="90.0" stroke="#1a5fb4" stroke-width="1.5" stroke-dasharray="4 3"/>
+  <text x="30.0" y="84.0" fill="#1a5fb4">116.35 = +30 % față de intrare (procent real)</text>
   <polyline points="329.0,269.5 344.0,277.3 359.0,285.1 374.0,292.9 389.0,300.5 404.0,308.0 419.0,315.0 434.0,320.8 449.0,325.5 464.0,329.4 479.0,333.1 494.0,336.9 509.0,340.5 524.0,341.9 539.0,342.5 554.0,340.9 569.0,337.5 584.0,333.0 599.0,330.4 614.0,327.6 629.0,324.6 644.0,320.6 659.0,315.4 674.0,309.9 689.0,303.6 704.0,297.2 719.0,290.3 734.0,282.7 749.0,275.0 764.0,268.0 779.0,259.2 794.0,249.0 809.0,238.8 824.0,229.0 839.0,218.4 854.0,208.6 869.0,198.9 884.0,189.5" fill="none" stroke="#b06000" stroke-width="1.5" stroke-dasharray="4 3"/>
   <text x="890" y="184" fill="#b06000">SMA-20</text>
   <line x1="44.0" y1="137.6" x2="44.0" y2="160.8" stroke="#1a1a1a" stroke-width="1.2"/>