Set reinforcement hero headshot paths directly in tutorial JSON

Dynamic resolution via ResolveHeadshotPath has two race conditions:
the eagle NewHeroes update may arrive after the Shardok reserve unit
update, and streaming hero name text may not match yet. For tutorial
content where we know the heroes, set the paths directly.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/main/csharp/net/eagle0/clients/unity/eagle0/Assets/Resources/Dialogues/tutorial_battle.json

@@ -17,8 +17,8 @@
         {
           "speakerName": "Old Marek the Learned",
           "speakerImagePath": "fixed/old_marek_the_learned.png",
-          "dialogueText": "Let me take stock. We have <b>light infantry</b> and <b>longbowmen</b> \u2014 not much, but the longbows can strike from range and they're deadly against Tarn's armored <b>knights</b> and <b>heavy infantry</b>. We'll need them.",
-          "instructionText": "<sprite name=\"LightInfantry\"> <b>Light Infantry</b> \u2014 Fast, lightly armored\n<sprite name=\"Longbowmen\"> <b>Longbowmen</b> \u2014 Ranged attack, strong vs. armor\n<sprite name=\"HeavyInfantry\"> <b>Heavy Infantry</b> \u2014 Slow, heavily armored (enemy)\n<sprite name=\"HeavyCavalry\"> <b>Knights</b> \u2014 Mounted, powerful charge (enemy)",
+          "dialogueText": "Let me take stock. We have <b>light infantry</b> and <b>longbowmen</b> \u2014 not much, but the longbows can strike from range and they're deadly against Tarn's armored <b>knights</b> and <b>heavy infantry</b>. And he's brought <b>dragoons</b> \u2014 fast cavalry, hard to pin down. We'll need every advantage we can get.",
+          "instructionText": "<sprite name=\"LightInfantry\"> <b>Light Infantry</b> \u2014 Fast, lightly armored\n<sprite name=\"Longbowmen\"> <b>Longbowmen</b> \u2014 Ranged attack, strong vs. armor\n<sprite name=\"HeavyInfantry\"> <b>Heavy Infantry</b> \u2014 Slow, heavily armored (enemy)\n<sprite name=\"HeavyCavalry\"> <b>Knights</b> \u2014 Mounted, powerful charge (enemy)\n<sprite name=\"LightCavalry\"> <b>Dragoons</b> \u2014 Fast cavalry, charge and reposition (enemy)",
           "highlightTarget": null,
           "highlightProvince": null,
           "completionEvent": null
@@ -147,7 +147,7 @@
         {
           "speakerName": "Old Marek the Learned",
           "speakerImagePath": "fixed/old_marek_the_learned.png",
-          "dialogueText": "Ah, the allies I sent for \u2014 they made it! These three have some useful tricks up their sleeves. Let them introduce themselves.",
+          "dialogueText": "Ah \u2014 Ranil, Elena, Hedrick. I wasn't sure you'd come. Desperate times, it seems, make for unlikely alliances.",
           "instructionText": null,
           "highlightTarget": null,
           "highlightProvince": null,
@@ -155,8 +155,8 @@
         },
         {
           "speakerName": "John Ranil",
-          "speakerImagePath": null,
-          "dialogueText": "Ranil, at your service. I'm handy with a hammer and not half bad with a blueprint. Need a bridge? I'm your man. Need a castle wall patched up? Also me. Need someone to lob rocks at the other fellow's castle? Still me.",
+          "speakerImagePath": "fixed/john_ranil.png",
+          "dialogueText": "I sat out as long as I could, Sadar. Tried to keep my people safe and stay out of it. But Tarn's forces pushed through my province last month and didn't much care who was in the way. So here I am \u2014 and I brought my tools. Point me at something that needs building or breaking.",
           "instructionText": "<sprite name=\"Engineer\"> <b>Engineer</b> \u2014 Can repair or build bridges and castles, and fortify a position. While fortified, can bombard enemy-held castles from range.",
           "highlightTarget": null,
           "highlightProvince": null,
@@ -164,8 +164,8 @@
         },
         {
           "speakerName": "Elena Fyar",
-          "speakerImagePath": null,
-          "dialogueText": "Fyar, Paladin of the Order. I can call a Holy Wave \u2014 it'll patch up your men and make short work of anything undead. Handy trick when things get ugly.",
+          "speakerImagePath": "fixed/elena_fyar.png",
+          "dialogueText": "I warned my father about Tarn years ago, and no one listened. Well \u2014 here we are. I've brought what's left of the Order with me. If your men are wounded, I can help with that. And if Tarn has brought anything... unnatural... I can help with that too.",
           "instructionText": "<sprite name=\"Paladin\"> <b>Paladin</b> \u2014 Can unleash a Holy Wave that restores vigor to adjacent friendly units and destroys any undead among them.",
           "highlightTarget": null,
           "highlightProvince": null,
@@ -173,8 +173,8 @@
         },
         {
           "speakerName": "Hedrick the Hedge-merchant",
-          "speakerImagePath": null,
-          "dialogueText": "Hedrick. Hedge-merchant by trade, ranger by necessity \u2014 turns out the swamps are full of business opportunities and also large angry things. I know how to stay hidden, and I know how to make the other fellow wish he'd stayed hidden.",
+          "speakerImagePath": "fixed/hedrick_the_hedge_merchant.png",
+          "dialogueText": "I was trying to sell shrubberies in Ingia when your man found me, Marek. Business has been terrible \u2014 turns out nobody buys decorative hedges during a civil war. But I know every back trail and hollow between here and the coast, and I know how to make myself scarce when I need to.",
           "instructionText": "<sprite name=\"Ranger\"> <b>Ranger</b> \u2014 Can hide in forests and swamps, ambush enemies emerging from concealment, and scout to reveal hidden enemy positions.",
           "highlightTarget": null,
           "highlightProvince": null,

src/main/csharp/net/eagle0/clients/unity/eagle0/Assets/Resources/Dialogues/tutorial_strategic.json

@@ -7,7 +7,7 @@
         {
           "speakerName": "Old Marek the Learned",
           "speakerImagePath": "fixed/old_marek_the_learned.png",
-          "dialogueText": "Sadar Rakon. I had hoped we would never see this day.\n\nYou were once Ikhaan Tarn's most trusted lieutenant \u2014 the right hand of the Shardok himself. But over the past year, Tarn's behavior grew ever more erratic. The cruelty, the paranoia... and King Bregos would hear none of it.\n\nSo you did what had to be done. You and a handful of others raised the banner of the Reclamation \u2014 not against the Crown, but against the madman who wields its sword.",
+          "dialogueText": "Sadar Rakon. I had hoped we would never see this day.\n\nYou were once Ikhaan Tarn's most trusted lieutenant \u2014 the right hand of the Shardok himself. But over the past year, Tarn's behavior grew ever more erratic. The paranoia, the inscrutable orders, those strange training exercises no one could explain... and King Bregos would hear none of it.\n\nSo you did what had to be done. You and a handful of others raised the banner of the Reclamation \u2014 not against the Crown, but against the man who wields its sword and can no longer be trusted with it.",
           "instructionText": null,
           "highlightTarget": null,
           "completionEvent": null