Add astrological houses to natal chart and daily transits

Every planet position now carries its whole-sign house (1-12); transits
report the natal house each transiting planet currently occupies rather
than a fresh "houses for right now" chart, matching how transits are
normally read. Surfaced in both text and HTML output, fully translated.

engine/i18n/de.lang

@@ -14,6 +14,7 @@ ui.todays_sky=Heutiger Himmel
 ui.todays_aspects=Heutige Aspekte zum Geburtshoroskop
 ui.celtic_cross=Keltisches Kreuz
 ui.ascendant=Aszendent
+ui.house=Haus
 ui.moon_phase=Mondphase:
 ui.no_aspects=(keine im Orbis)
 ui.reversed=(Umgekehrt)

engine/i18n/en.lang

@@ -21,6 +21,7 @@ ui.todays_sky=Today's Sky
 ui.todays_aspects=Today's Aspects to Natal Chart
 ui.celtic_cross=Celtic Cross
 ui.ascendant=Ascendant
+ui.house=House
 ui.moon_phase=Moon phase:
 ui.no_aspects=(none within orb)
 ui.reversed=(Reversed)