Add manual radar ping, blip refresh/fade, and resolution statue barrier

- Manual hider ping on "E": server-authoritative RequestManualPing gated to
  Seek + living hider; shared EmitRadarPings path so interval and manual pings
  produce identical blips. Ping key read client-side in GameModeManager, role-
  gated and excluded in FreeCam (E is fly-up there).
- Radar refreshes an existing blip for the same transform target instead of
  duplicating it (lifetime resets to the configured value) via RadarTarget.Refresh.
- Blips fade in/out independently of the disc fade: per-blip MoveTowards factor
  multiplied on top of the radar fade, refresh-safe, with separate in/out speeds.
- Resolution countdown waits for conversion statues to load: generalized the
  match-start loading barrier (RunReadinessBarrier over _barrierTargets, hold
  phase carried in MsgBeginLoad) and run it a second time over statue IDs before
  starting the real resolveDuration. Only holds for Conversion with real statues.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Assets/Scripts/Components/RadarTarget.cs

@@ -7,6 +7,11 @@ using UnityEngine;
 /// once its lifetime elapses - or earlier if its target is destroyed. The point's base colour and size encode
 /// the two things the flat radar disc can't show via position alone: <see cref="forwardGradient"/> tints it by
 /// how far the target sits ahead of / behind the camera, and its scale shrinks with camera -> target distance.
+///
+/// On top of the radar-wide fade, each blip fades in when it spawns and fades out at the end of its life (or when
+/// its world target vanishes) via its own <see cref="_fade"/> factor, so blips appear/disappear smoothly instead
+/// of popping. Fade-in and fade-out speeds are independent; the factor persists across <see cref="Refresh"/> so a
+/// refreshed blip is pulled back to full opacity rather than flickering to zero first.
 /// </summary>
 [DisallowMultipleComponent]
 public sealed class RadarTarget : MonoBehaviour
@@ -20,11 +25,18 @@ public sealed class RadarTarget : MonoBehaviour
     [Tooltip("camera -> target distance mapped onto pointDistanceScale: x = near distance, y = far distance.")]
     [SerializeField] Vector2 pointDistanceRange;
 
+    [Header("Fade")]
+    [Tooltip("Per-blip fade-in speed in alpha units per second when the blip appears. e.g. 6 = ~0.17s. 0 = appear instantly.")]
+    [SerializeField] float fadeInSpeed = 6f;
+    [Tooltip("Per-blip fade-out speed in alpha units per second at the end of life / when the target vanishes. e.g. 4 = ~0.25s. 0 = vanish instantly.")]
+    [SerializeField] float fadeOutSpeed = 4f;
+
     private Transform _target;
     private Camera _camera;
     private float _lifetime;
     private float _age;
     private bool _initialised;
+    private float _fade;   // per-blip 0..1 ramp, multiplied on top of the radar-wide fade; persists across Refresh
 
     private MaterialPropertyBlock _mpb;
     private Color _pointColor = Color.white;   // last gradient-evaluated point colour; its alpha is scaled by the radar fade
@@ -44,27 +56,39 @@ public sealed class RadarTarget : MonoBehaviour
         PushPointColor();
     }
 
+    /// <summary>Restarts this blip's countdown to <paramref name="lifetime"/> seconds. Used when a ping arrives
+    /// for a target this radar already tracks: the existing blip is refreshed instead of stacking a duplicate.</summary>
+    public void Refresh(float lifetime)
+    {
+        _lifetime = lifetime;
+        _age = 0f;
+    }
+
     // LateUpdate so the aim uses the camera's final position/rotation for this frame.
     private void LateUpdate()
     {
         if (!_initialised) return;
 
         _age += Time.deltaTime;
-        if (_age >= _lifetime)
+
+        // Fade out at the very end of life, or immediately if the world target vanished (e.g. a caught hider)
+        // instead of dangling. The fade-out window equals the time to ramp 1 -> 0 at fadeOutSpeed, so the point
+        // reaches full transparency right as the lifetime elapses; then the blip destroys itself.
+        float fadeOutWindow = fadeOutSpeed > 0f ? 1f / fadeOutSpeed : 0f;
+        bool fadingOut = !_target || RemainingLifetime <= fadeOutWindow;
+
+        float goal = fadingOut ? 0f : 1f;
+        float speed = Mathf.Max(0f, fadingOut ? fadeOutSpeed : fadeInSpeed);
+        _fade = Mathf.MoveTowards(_fade, goal, speed * Time.deltaTime);
+
+        if (fadingOut && (speed <= 0f || _fade <= 0.0001f))
         {
             Destroy(gameObject);
             return;
         }
 
-        // The world target may despawn (e.g. a caught hider) before this blip expires - drop it, don't dangle.
-        if (!_target)
-        {
-            Destroy(gameObject);
-            return;
-        }
-
-        Aim();
-        PushPointColor(); // every frame so the blip's alpha tracks the radar fade even when Aim early-returns
+        Aim();            // keeps last orientation/colour if the target is gone (Aim early-returns)
+        PushPointColor(); // every frame so the alpha tracks both the radar fade and this blip's own fade
     }
 
     private void Aim()
@@ -100,13 +124,13 @@ public sealed class RadarTarget : MonoBehaviour
         _pointColor = forwardGradient.Evaluate(t);
     }
 
-    // Writes the point's _BaseColor with its alpha scaled by the radar's shared fade factor, so blips fade in/out
-    // in step with the disc instead of the overlay snapping on/off.
+    // Writes the point's _BaseColor with its alpha scaled by both the radar's shared fade factor (so blips fade in
+    // step with the disc) and this blip's own fade (so it eases in on spawn and out at the end of its life).
     private void PushPointColor()
     {
         if (!pointRenderer) return;
         Color c = _pointColor;
-        c.a *= Radar.Instance ? Radar.Instance.CurrentFade : 1f;
+        c.a *= (Radar.Instance ? Radar.Instance.CurrentFade : 1f) * _fade;
         _mpb ??= new MaterialPropertyBlock();
         pointRenderer.GetPropertyBlock(_mpb);
         _mpb.SetColor(BaseColorId, c);