Phase 9: reproducible builds, balance from the server, spark check, play feedback

Build: every tool pinned (JDK, packwiz, Gradle plugins, Python packages), exports
normalised, tools/check_reproducible.py proves two clean builds are byte-identical.

Server-side balance: a server can load config/cobblesurvival/datapack.zip in place of
the jar's data, /reload applies it, tools/server_update.py packages it and refuses
when a client change is needed. JEI drop pages are sent by the server. Code-held
balance numbers moved to tuning/server.json.

Performance: spark in the pack (server only), tools/perf_test.py with fake players
whose chunks really are active, docs/performance.md.

Adrian's feedback: default keys R, U, J, §; drop pages link to Cobblemon Info and show
real chances; bosses only hurt in battles; battle XP halved; channels between the
islands low level; temperature ×3 with insulation doubled; hazards start at once; no
item dots on the map; a wild attack starts a battle; the starter only faints; quest
book on join with a basics page and an HMs page; regional forms obtainable.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

pack/config/ftbquests/quests/chapters/getting_started.snbt

@@ -27,6 +27,68 @@
 		}
 		{
 			dependencies: ["692C224D099307BA"]
+			icon: {
+				id: "minecraft:tripwire_hook"
+			}
+			id: "3E981E279A76CEC0"
+			tasks: [
+				{
+					id: "79A62C2E20551202"
+					type: "checkmark"
+				}
+			]
+			x: 2.0d
+			y: -1.5d
+		}
+		{
+			dependencies: ["692C224D099307BA"]
+			icon: {
+				id: "cobblemon:poke_ball"
+			}
+			id: "20A91DB2D922F503"
+			tasks: [
+				{
+					id: "180A6D1BC999F7D4"
+					type: "checkmark"
+				}
+			]
+			x: 2.0d
+			y: 0.0d
+		}
+		{
+			dependencies: ["20A91DB2D922F503"]
+			icon: {
+				id: "minecraft:iron_sword"
+			}
+			id: "47A58B466F15469C"
+			tasks: [
+				{
+					action: "defeat"
+					amount: 1L
+					biome: ""
+					dex_progress: ""
+					dimension: ""
+					form: ""
+					gender: ""
+					id: "023CD014C314A448"
+					max_level: 0
+					min_level: 0
+					natures: ""
+					poke_ball_used: ""
+					pokemon: ""
+					pokemon_type: ""
+					region: ""
+					shiny: false
+					time_max: 0L
+					time_min: 0L
+					type: "cobblemon_tasks:cobblemon_task"
+				}
+			]
+			x: 4.0d
+			y: 0.0d
+		}
+		{
+			dependencies: ["47A58B466F15469C"]
 			icon: {
 				id: "cobblemon:poke_ball"
 			}
@@ -77,6 +139,25 @@
 			x: 2.0d
 			y: 0.75d
 		}
+		{
+			dependencies: ["662D0BC3B032EA6A"]
+			icon: {
+				id: "cobblemon:pasture"
+			}
+			id: "7426375BD8FE75B4"
+			tasks: [
+				{
+					id: "0EF1735FF82BF64A"
+					item: {
+						count: 1
+						id: "cobblemon:pasture"
+					}
+					type: "item"
+				}
+			]
+			x: 8.0d
+			y: -3.75d
+		}
 		{
 			dependencies: ["662D0BC3B032EA6A"]
 			icon: {
@@ -243,6 +324,66 @@
 			x: 6.0d
 			y: -0.75d
 		}
+		{
+			dependencies: ["734F4C633D8946E3"]
+			icon: {
+				id: "minecraft:filled_map"
+			}
+			id: "60FEC6A879706B6D"
+			tasks: [
+				{
+					id: "7AF22D9FB20998A9"
+					type: "checkmark"
+				}
+			]
+			x: 10.0d
+			y: 0.0d
+		}
+		{
+			dependencies: ["60FEC6A879706B6D"]
+			icon: {
+				id: "minecraft:leather_chestplate"
+			}
+			id: "2CD942BD947AD220"
+			tasks: [
+				{
+					id: "72EC56D3618A6550"
+					type: "checkmark"
+				}
+			]
+			x: 12.0d
+			y: -1.5d
+		}
+		{
+			dependencies: ["60FEC6A879706B6D"]
+			icon: {
+				id: "minecraft:raw_iron"
+			}
+			id: "2E30721826656889"
+			tasks: [
+				{
+					id: "330E52B7A4CDB749"
+					type: "checkmark"
+				}
+			]
+			x: 12.0d
+			y: 0.0d
+		}
+		{
+			dependencies: ["60FEC6A879706B6D"]
+			icon: {
+				id: "cobblesurvival:heat_core"
+			}
+			id: "64D6151FAA5792B2"
+			tasks: [
+				{
+					id: "66630E973B974C93"
+					type: "checkmark"
+				}
+			]
+			x: 12.0d
+			y: 1.5d
+		}
 		{
 			dependencies: ["734F4C633D8946E3", "4E95F2B6B144DACB"]
 			icon: {