feat(5.16+5.17): tipografie/antet branded + tipuri cont, planuri si enforcement

PRD 5.16 — propagare design finalizata (system font stack, fara IBM Plex self-hostat):
- US-001/002/008: tokeni --font-ui/--font-mono (system stack) + scala --fs-*; zero
  @font-face si zero /static/fonts/; landing aliniat la acelasi stack
- US-003: RAR online = dot compact in antet + meniu burger; banda rosie DOAR pe blocat
  (invariant zero-silent-failures pastrat)
- US-010: antet "ROMFAST AUTOPASS" + nume service + /login brandeit 2 coloane + badge plan;
  meniu burger cu separatoare; gate strict pe is_authenticated
- US-011: selector tema pill icon+eticheta (reuse THEMES)
- US-004/005/006/007: bug-fix editor prestatii (picker cod+denumire, add_extra in mod
  operatii, cod ales se salveaza fara "+", Renunta inchide via closest)
- US-012/013: landing Autentificare->/login; wizard import colapsat + 4 pasi pe tokeni
- fix VERIFY E2E: contoare duplicate pe 390px (inline display:flex batea @media) -> CSS + test-lock

PRD 5.17 — tipuri de cont + trial Pro 30z + enforcement DUR:
- US-001/002/008: accounts.tier + trial_until (migrare aditiva defensiva); app/plans.py
  sursa unica (PLANS, FREE_MONTHLY_LIMIT=60, effective_tier(now injectabil), monthly_usage,
  CONSUMED_STATUSES); create_account trial Pro 30z; CLI set-tier (protejat id=1, audit)
- US-003/004/005: enforce volum 60/luna INAINTE de build_key pe ambele canale
  (PLAN_LIMITA_LUNARA, 3 niveluri + log_event); gate API Pro+ (PLAN_FARA_API 403 actionabil);
  valideaza/nomenclator raman permise; downgrade lazy; flag AUTOPASS_ENFORCE_PLANS (kill-switch)
- US-006: badge plan antet + linie burger + consum N/60 + warn>=80% + 6 stari + copy RO
  pluralizat + banner one-time trial->Gratuit + pagina Cont

Regresie: 1380 passed, 0 failed, 1 deselected (live). E2E browser pe 390/1280 confirmat.
Backend trimitere (worker/masina stari/idempotenta/contract RAR) NEATINS. Lucrul 5.18
(corpus kNN) ramane separat, necomis.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/web/templates/_cont.html

@@ -1,6 +1,38 @@
 <div class="card" id="card-cont">
   <h2 style="font-size:15px; margin:0 0 16px;">Contul meu</h2>
 
+  <!-- Sectiunea: Plan curent (US-006 PRD 5.17) -->
+  {% if plan_linie is defined %}
+  <div id="sectiune-plan" style="margin-bottom:20px; padding-bottom:20px; border-bottom:1px solid var(--line);">
+    <h3 style="font-size:var(--fs-sm); color:var(--muted); font-weight:500; margin:0 0 10px;
+               text-transform:uppercase; letter-spacing:.04em;">Plan curent</h3>
+
+    <div style="font-size:var(--fs-md); font-weight:600; margin-bottom:6px;
+                color:{% if plan_limita_atinsa|default(false) %}var(--err){% elif plan_warn|default(false) %}var(--warn){% else %}var(--ink){% endif %};">
+      {{ plan_linie }}
+    </div>
+
+    {% if monthly_limit_val is defined and monthly_limit_val is not none and effective_tier_name|default('') == 'free' %}
+    <div style="font-size:var(--fs-sm); color:var(--muted); margin-bottom:8px;">
+      Planul Gratuit include {{ monthly_limit_val }} prestatii/luna prin dashboard-ul web.
+      {% if plan_limita_atinsa|default(false) %}
+      Limita lunara a fost atinsa — trimiterile noi sunt blocate pana la inceputul lunii urmatoare.
+      {% elif plan_warn|default(false) %}
+      Te apropii de limita lunara.
+      {% endif %}
+    </div>
+    {% endif %}
+
+    <div style="font-size:var(--fs-sm); color:var(--muted); padding:8px 10px;
+                border:1px solid var(--line); border-radius:6px; margin-top:4px;">
+      Vrei sa treci pe Standard, Pro sau Premium?
+      Contacteaza-ne pentru alocare manuala — nu exista inca plata self-service.
+      <strong>Pro</strong> adauga import prin API; <strong>Standard</strong> si
+      <strong>Premium</strong> ridica limita de volum.
+    </div>
+  </div>
+  {% endif %}
+
   <!-- Sectiunea: Date firma (US-002) -->
   <div style="margin-bottom:20px; padding-bottom:20px; border-bottom:1px solid var(--line);">
     <h3 style="font-size:13px; color:var(--muted); font-weight:500; margin:0 0 8px; text-transform:uppercase; letter-spacing:.04em;">Date firma</h3>