refactor: gut model/tag/fallback/agent-template system, fix Docker setup

- Remove ModelResolver, model definitions, model tags, fallback order, agent templates
- Remove all [[models]], [agents], and fallback from dispatch.toml and config schema
- ModelRegistry is now a pure key-state manager
- dispatch.toml reduced to keys + permissions only
- Docker: fix entrypoint for existing UID, skip bun install in frontend container
- Docker: scoped build cache prune in bin/clean

4 files changed, 7 insertions, 47 deletions

diff --git a/packages/frontend/src/App.svelte b/packages/frontend/src/App.svelte
index 51fbd00..4ea968c 100644
--- a/packages/frontend/src/App.svelte
+++ b/packages/frontend/src/App.svelte
@@ -9,14 +9,12 @@ import HotReloadIndicator from "./lib/components/HotReloadIndicator.svelte";
 import { chatStore } from "./lib/chat.svelte.js";
 import { wsClient } from "./lib/ws.svelte.js";
 import { config } from "./lib/config.js";
-import type { KeyInfo, ModelInfo } from "./lib/types.js";
+import type { KeyInfo } from "./lib/types.js";
 
 const STORAGE_KEY = "dispatch-theme";
 
-let modelsData = $state<{ models: ModelInfo[]; keys: KeyInfo[]; tags: string[] }>({
-	models: [],
+let modelsData = $state<{ keys: KeyInfo[] }>({
 	keys: [],
-	tags: [],
 });
 
 let sidebarOpen = $state(true);
@@ -27,9 +25,7 @@ async function fetchModels() {
 		if (!res.ok) return;
 		const data = await res.json();
 		modelsData = {
-			models: data.models ?? [],
 			keys: data.keys ?? [],
-			tags: data.tags ? (Array.isArray(data.tags) ? data.tags : Object.keys(data.tags)) : [],
 		};
 	} catch {
 		// ignore fetch errors
@@ -83,10 +79,8 @@ onMount(() => {
 			class="w-80 flex-1 min-h-0 overflow-y-auto bg-base-100 border-l border-base-300 px-2 py-2 flex flex-col gap-2 [&>*]:shrink-0 transition-transform duration-300 ease-out"
 			style="transform: translateX({sidebarOpen ? '0' : '100%'})"
 		>
-			<SidebarPanel
-				models={modelsData.models}
-				keys={modelsData.keys}
-				tags={modelsData.tags}
+		<SidebarPanel
+			keys={modelsData.keys}
 				tasks={chatStore.tasks}
 				permissionLog={chatStore.permissionLog}
 				apiBase={config.apiBase}
diff --git a/packages/frontend/src/lib/components/ModelStatus.svelte b/packages/frontend/src/lib/components/ModelStatus.svelte
index b2b6902..a627de8 100644
--- a/packages/frontend/src/lib/components/ModelStatus.svelte
+++ b/packages/frontend/src/lib/components/ModelStatus.svelte
@@ -7,12 +7,6 @@
 		exhaustedAt: number | null;
 	}
 
-	interface ModelInfo {
-		id: string;
-		provider: string;
-		tags: string[];
-	}
-
 	interface CredentialStatus {
 		keyId: string;
 		provider: string;
@@ -23,15 +17,11 @@
 	}
 
 	const {
-		models = [],
 		keys = [],
-		tags = [],
 		currentModel,
 		apiBase = "",
 	}: {
-		models?: ModelInfo[];
 		keys?: KeyInfo[];
-		tags?: string[];
 		currentModel?: string;
 		apiBase?: string;
 	} = $props();
@@ -42,8 +32,6 @@
 	const allExhausted = $derived(totalKeys > 0 && activeKeys === 0);
 	const someExhausted = $derived(totalKeys > 0 && activeKeys < totalKeys && activeKeys > 0);
 
-	const uniqueTags = $derived([...new Set(tags)]);
-
 	let credentialStatus = $state<Record<string, CredentialStatus>>({});
 	let importingKey = $state<string | null>(null);
 	let importError = $state<string | null>(null);
@@ -158,7 +146,7 @@
 </script>
 
 <div class="flex flex-col gap-3">
-	{#if models.length === 0 && keys.length === 0}
+	{#if keys.length === 0}
 		<p class="text-xs text-base-content/50">
 			No models configured. Using environment defaults.
 		</p>
@@ -191,18 +179,6 @@
 			</div>
 		{/if}
 
-		<!-- Tags -->
-		{#if uniqueTags.length > 0}
-			<div class="flex flex-col gap-1">
-				<p class="text-xs text-base-content/50 uppercase tracking-wide">Tags</p>
-				<div class="flex flex-wrap gap-1">
-					{#each uniqueTags as tag (tag)}
-						<span class="badge badge-outline badge-xs">{tag}</span>
-					{/each}
-				</div>
-			</div>
-		{/if}
-
 		<!-- Import error/success banners -->
 		{#if importError}
 			<div role="alert" class="text-xs text-error/80">{importError}</div>
diff --git a/packages/frontend/src/lib/components/SidebarPanel.svelte b/packages/frontend/src/lib/components/SidebarPanel.svelte
index 79eb73b..e5536de 100644
--- a/packages/frontend/src/lib/components/SidebarPanel.svelte
+++ b/packages/frontend/src/lib/components/SidebarPanel.svelte
@@ -7,12 +7,10 @@
 	import PermissionLog from "./PermissionLog.svelte";
 	import KeyUsage from "./KeyUsage.svelte";
 	import ClaudeReset from "./ClaudeReset.svelte";
-	import type { TaskItem, LogEntry, KeyInfo, ModelInfo } from "../types.js";
+	import type { TaskItem, LogEntry, KeyInfo } from "../types.js";
 
 	const {
-		models = [],
 		keys = [],
-		tags = [],
 		tasks = [],
 		permissionLog = [],
 		apiBase = "",
@@ -23,9 +21,7 @@
 		onModelChange,
 		onReasoningChange,
 	}: {
-		models?: ModelInfo[];
 		keys?: KeyInfo[];
-		tags?: string[];
 		tasks?: TaskItem[];
 		permissionLog?: LogEntry[];
 		apiBase?: string;
@@ -109,7 +105,7 @@
 				{:else if panel.selected === "Claude Reset"}
 					<ClaudeReset {apiBase} />
 				{:else if panel.selected === "Model Status"}
-					<ModelStatus {models} {keys} {tags} {apiBase} />
+					<ModelStatus {keys} {apiBase} />
 				{:else if panel.selected === "Tasks"}
 					<TaskListPanel {tasks} />
 				{:else if panel.selected === "Config"}
diff --git a/packages/frontend/src/lib/types.ts b/packages/frontend/src/lib/types.ts
index 559742d..28752a0 100644
--- a/packages/frontend/src/lib/types.ts
+++ b/packages/frontend/src/lib/types.ts
@@ -94,12 +94,6 @@ export interface KeyInfo {
 	exhaustedAt: number | null;
 }
 
-export interface ModelInfo {
-	id: string;
-	provider: string;
-	tags: string[];
-}
-
 export interface LogEntry {
 	id: string;
 	permission: string;