refactor: complete pi-web rename in paths and env vars

- Config path: ~/.pi/pi-search/config.json -> ~/.pi/pi-web/config.json
- Env vars: PI_SEARCH_PROVIDER -> PI_WEB_PROVIDER,
  PI_SEARCH_SEARXNG_URL -> PI_WEB_SEARXNG_URL
- README + flake.nix description updated to match.

README.md

@@ -18,7 +18,7 @@ For raw HTTP responses, non-text content, or simple API calls, the LLM is steere
 
 ## Config
 
-Drop a JSON file at `~/.pi/pi-search/config.json`:
+Drop a JSON file at `~/.pi/pi-web/config.json`:
 
 ```json
 {
@@ -34,11 +34,11 @@ Drop a JSON file at `~/.pi/pi-search/config.json`:
 
 ### Env Var Overrides
 
-| Variable                | Overrides         |
-| ----------------------- | ----------------- |
-| `PI_SEARCH_PROVIDER`    | `provider`        |
-| `KAGI_TOKEN`            | `kagi.token`      |
-| `PI_SEARCH_SEARXNG_URL` | `searxng.baseUrl` |
+| Variable              | Overrides         |
+| --------------------- | ----------------- |
+| `PI_WEB_PROVIDER`     | `provider`        |
+| `KAGI_TOKEN`          | `kagi.token`      |
+| `PI_WEB_SEARXNG_URL`  | `searxng.baseUrl` |
 
 ### Getting A Kagi Session Token
 

flake.nix

@@ -1,5 +1,5 @@
 {
-  description = "pi-search extension development environment";
+  description = "pi-web extension development environment";
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";

index.ts

@@ -1,6 +1,6 @@
 // Pi-Web Extension - Registers `web_search` and `web_fetch` tools backed by
 // a shared headless Firefox session. Provider config lives in
-// ~/.pi/pi-search/config.json (env overrides supported).
+// ~/.pi/pi-web/config.json (env overrides supported).
 import type { ExtensionAPI } from "@mariozechner/pi-coding-agent";
 import { Type } from "typebox";
 import { ConfigError, loadConfig, resolveSettings } from "./src/config.ts";

src/config.ts

@@ -26,7 +26,7 @@ export class ConfigError extends Error {
 export function defaultConfigPath(
   env: NodeJS.ProcessEnv = process.env,
 ): string {
-  return join(env.HOME ?? homedir(), ".pi", "pi-search", "config.json");
+  return join(env.HOME ?? homedir(), ".pi", "pi-web", "config.json");
 }
 
 function isObject(value: unknown): value is Record<string, unknown> {
@@ -85,15 +85,15 @@ export function resolveSettings(
   config: PiSearchConfig,
   env: NodeJS.ProcessEnv = process.env,
 ): ResolvedSettings {
-  const provider = (env.PI_SEARCH_PROVIDER as Provider) ?? config.provider;
+  const provider = (env.PI_WEB_PROVIDER as Provider) ?? config.provider;
   if (!provider) {
     throw new ConfigError(
-      "no provider configured. Set provider in ~/.pi/pi-search/config.json or PI_SEARCH_PROVIDER env.",
+      "no provider configured. Set provider in ~/.pi/pi-web/config.json or PI_WEB_PROVIDER env.",
     );
   }
   return {
     provider,
     kagiToken: env.KAGI_TOKEN ?? config.kagi?.token,
-    searxngBaseUrl: env.PI_SEARCH_SEARXNG_URL ?? config.searxng?.baseUrl,
+    searxngBaseUrl: env.PI_WEB_SEARXNG_URL ?? config.searxng?.baseUrl,
   };
 }

src/providers/searxng.ts

@@ -22,7 +22,7 @@ export async function searchSearxng({
   if (!baseUrl) {
     throw new SearchError(
       "SEARXNG_URL_REQUIRED",
-      "SearXNG search requires a base URL. Set searxng.baseUrl in config or PI_SEARCH_SEARXNG_URL env.",
+      "SearXNG search requires a base URL. Set searxng.baseUrl in config or PI_WEB_SEARXNG_URL env.",
     );
   }