Consolidate env at repo root

- Move all application env vars to repository-root .env (with .env.example
  as the committed template) and drop the per-app .env.example files.
- Add @code/env subpaths (agent, convex) and consume validated exports
  everywhere instead of reading process.env directly.
- Wire every dev/build/start script to load ../../.env via bun --env-file
  and point vite.config.ts envDir at the repo root.

packages/env/package.json

@@ -4,13 +4,14 @@
   "private": true,
   "type": "module",
   "exports": {
-    "./web": "./src/web.ts",
+    "./agent": "./src/agent.ts",
+    "./convex": "./src/convex.ts",
     "./native": "./src/native.ts",
-    "./server": "./src/server.ts"
+    "./server": "./src/server.ts",
+    "./web": "./src/web.ts"
   },
   "dependencies": {
     "@t3-oss/env-core": "^0.13.11",
-    "dotenv": "catalog:",
     "zod": "catalog:"
   },
   "devDependencies": {

packages/env/src/agent.ts

@@ -0,0 +1,17 @@
+import { z } from "zod";
+
+const agentEnvSchema = z.object({
+  AGENT_MODEL_API: z.literal("openai-completions"),
+  AGENT_MODEL_API_KEY: z.string().min(1),
+  AGENT_MODEL_BASE_URL: z.url(),
+  AGENT_MODEL_CONTEXT_WINDOW: z.coerce.number().int().positive(),
+  AGENT_MODEL_MAX_TOKENS: z.coerce.number().int().positive(),
+  AGENT_MODEL_NAME: z.string().min(1),
+  AGENT_MODEL_PROVIDER: z.string().min(1),
+});
+
+export type AgentEnv = z.infer<typeof agentEnvSchema>;
+
+export const parseAgentEnv = (
+  runtimeEnv: Record<string, string | undefined>
+): AgentEnv => agentEnvSchema.parse(runtimeEnv);

packages/env/src/convex.ts

@@ -0,0 +1,13 @@
+import { createEnv } from "@t3-oss/env-core";
+import { z } from "zod";
+
+export const env = createEnv({
+  emptyStringAsUndefined: true,
+  runtimeEnv: process.env,
+  server: {
+    CONVEX_SITE_URL: z.url(),
+    FLUE_DB_TOKEN: z.string().min(1),
+    NATIVE_APP_URL: z.string().min(1).default("code://"),
+    SITE_URL: z.url(),
+  },
+});

packages/env/src/server.ts

@@ -14,6 +14,7 @@ export const env = createEnv({
     DAEMON_VERSION: z.string().default("0.0.0"),
     DAEMON_HEARTBEAT_MS: z.coerce.number().int().positive().default(15_000),
     DAEMON_COMMAND_LEASE_MS: z.coerce.number().int().positive().default(60_000),
+    FLUE_DB_TOKEN: z.string().min(1),
     RIVET_ENDPOINT: z.url().optional(),
   },
   runtimeEnv: process.env,

packages/env/src/vite-env.d.ts

@@ -0,0 +1,9 @@
+interface ImportMetaEnv {
+  readonly [key: string]: string | number | boolean | undefined;
+  readonly VITE_CONVEX_SITE_URL: string;
+  readonly VITE_CONVEX_URL: string;
+}
+
+interface ImportMeta {
+  readonly env: ImportMetaEnv;
+}

packages/env/src/web.ts

@@ -7,12 +7,11 @@ const convexUrlSchema = (exampleHost: string) =>
   });
 
 export const env = createEnv({
-  clientPrefix: "VITE_",
   client: {
-    VITE_CONVEX_URL: convexUrlSchema("example.convex.cloud"),
     VITE_CONVEX_SITE_URL: convexUrlSchema("example.convex.site"),
+    VITE_CONVEX_URL: convexUrlSchema("example.convex.cloud"),
   },
-  runtimeEnv: (import.meta as any).env,
-  skipValidation: !!process.env.SKIP_ENV_VALIDATION,
+  clientPrefix: "VITE_",
   emptyStringAsUndefined: true,
+  runtimeEnv: import.meta.env,
 });