Add experimental EFA support

Squashed commit of the following:

commit b7457791ab7ab4859ebf4a5ce173e1aaeed4c7fb
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Sun Jun 15 08:18:46 2025 +0200

    changelog

commit 7f3d61066195cfc3c83a8fc1b2fc3743e7e6171c
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Sat Jun 14 19:55:51 2025 +0200

    Mark EFA backends as experimental for now

    For instance, VRR has very interesting issues when checking into departures
    that do not have real-time data yet.

commit 3370c0f6c25bd6b02cc4d56e9a3aba2a66d1151a
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Sat Jun 14 19:49:48 2025 +0200

    InTransit: remove debug output

commit deb5444fa2965228b537e86fce862436ef2e6e19
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Sat Jun 14 19:12:44 2025 +0200

    frontend js for checked-in view: never show fractional delays

commit d47ff9615b551bbd844a799be7717e9e74a04266
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Sat Jun 14 19:12:31 2025 +0200

    worker: add EFA support

commit 3a955c0105bf13d040a821e2c87a19694202cde6
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Sat Jun 14 17:48:46 2025 +0200

    EFA: checkin support

    worker support and cancellations are still missing

commit 19dea1ad13029d19cba38e7d1338718149c139fb
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Sat Jun 14 14:32:59 2025 +0200

    actions.js: pass on efa parameter

commit 8f18ff2c8f9f906a387dbe16d372e1c4b4a6f259
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Sat Jun 14 14:32:48 2025 +0200

    EFA: implement geolocation lookup

commit bce1139bab9aab167cdab910fa86085529d45b80
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Sat Jun 14 14:32:21 2025 +0200

    EFA: ->id is no longer supported, use ->id_num

commit e4397e6b1538ddfa71da9839d6011a73fadc528f
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Mon Jun 9 20:34:22 2025 +0200

    ... derp

commit e0c4cbf862a8f5a7bca0b1aceab3760af94093e9
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Mon Jun 9 18:28:35 2025 +0200

    database: it's dbris, not ris

commit bfb1e834ce6c3171011dc20b32117065960b8771
Merge: 42f9a00 f1da50f
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Mon Jun 9 18:20:51 2025 +0200

    Merge branch 'main' into efa-support

commit 42f9a00d98dbd675234c05b3e25c3e722cfdd7ba
Author: Birte Kristina Friesel <derf@finalrewind.org>
Date:   Wed Jan 8 18:11:28 2025 +0100

    EFA support (WiP)

1 files changed, 58 insertions, 5 deletions

diff --git a/lib/Travelynx/Model/Stations.pm b/lib/Travelynx/Model/Stations.pm
index 174b3b4..bf35d1a 100644
--- a/lib/Travelynx/Model/Stations.pm
+++ b/lib/Travelynx/Model/Stations.pm
@@ -23,12 +23,15 @@ sub get_backend_id {
 		# special case
 		return 0;
 	}
-	if ( $opt{hafas} and $self->{backend_id}{hafas}{ $opt{hafas} } ) {
-		return $self->{backend_id}{hafas}{ $opt{hafas} };
-	}
 	if ( $opt{dbris} and $self->{backend_id}{dbris}{ $opt{dbris} } ) {
 		return $self->{backend_id}{dbris}{ $opt{dbris} };
 	}
+	if ( $opt{efa} and $self->{backend_id}{efa}{ $opt{efa} } ) {
+		return $self->{backend_id}{efa}{ $opt{efa} };
+	}
+	if ( $opt{hafas} and $self->{backend_id}{hafas}{ $opt{hafas} } ) {
+		return $self->{backend_id}{hafas}{ $opt{hafas} };
+	}
 	if ( $opt{motis} and $self->{backend_id}{motis}{ $opt{motis} } ) {
 		return $self->{backend_id}{motis}{ $opt{motis} };
 	}
@@ -47,6 +50,17 @@ sub get_backend_id {
 		)->hash->{id};
 		$self->{backend_id}{dbris}{ $opt{dbris} } = $backend_id;
 	}
+	elsif ( $opt{efa} ) {
+		$backend_id = $db->select(
+			'backends',
+			['id'],
+			{
+				efa  => 1,
+				name => $opt{efa}
+			}
+		)->hash->{id};
+		$self->{backend_id}{efa}{ $opt{efa} } = $backend_id;
+	}
 	elsif ( $opt{hafas} ) {
 		$backend_id = $db->select(
 			'backends',
@@ -100,7 +114,7 @@ sub get_backends {
 	$opt{db} //= $self->{pg}->db;
 
 	my $res = $opt{db}->select( 'backends',
-		[ 'id', 'name', 'iris', 'hafas', 'dbris', 'motis' ] );
+		[ 'id', 'name', 'dbris', 'efa', 'hafas', 'iris', 'motis' ] );
 	my @ret;
 
 	while ( my $row = $res->hash ) {
@@ -109,9 +123,10 @@ sub get_backends {
 			{
 				id    => $row->{id},
 				name  => $row->{name},
-				iris  => $row->{iris},
 				dbris => $row->{dbris},
+				efa   => $row->{efa},
 				hafas => $row->{hafas},
+				iris  => $row->{iris},
 				motis => $row->{motis},
 			}
 		);
@@ -166,6 +181,44 @@ sub add_or_update {
 		return;
 	}
 
+	if ( $opt{efa} ) {
+		if (
+			my $s = $self->get_by_eva(
+				$stop->id_num,
+				db         => $opt{db},
+				backend_id => $opt{backend_id}
+			)
+		  )
+		{
+			$opt{db}->update(
+				'stations',
+				{
+					name     => $stop->full_name,
+					lat      => $stop->latlon->[0],
+					lon      => $stop->latlon->[1],
+					archived => 0
+				},
+				{
+					eva    => $stop->id_num,
+					source => $opt{backend_id}
+				}
+			);
+			return;
+		}
+		$opt{db}->insert(
+			'stations',
+			{
+				eva      => $stop->id_num,
+				name     => $stop->full_name,
+				lat      => $stop->latlon->[0],
+				lon      => $stop->latlon->[1],
+				source   => $opt{backend_id},
+				archived => 0
+			}
+		);
+		return;
+	}
+
 	if ( $opt{motis} ) {
 		if (
 			my $s = $self->get_by_external_id(