chore: extract hardcoded URL placeholders into shared constants (#169)

Extracted hardcoded placeholder URLs to new constants.ts

Co-authored-by: Andrew Holzbach <andrewholzbach@Andrews-MacBook-Pro-687.local>

Author: andrewholzbach

src/settings/tabs/ModelTab.tsx

@@ -195,7 +195,7 @@ export function ModelTab({ config, resyncToken, onSaved }: ModelTabProps) {
             <TextField
               value={value}
               onChange={setValue}
-              placeholder="http://127.0.0.1:11434"
+              placeholder={config.inference.ollama_url}
               errored={errored}
               ariaLabel="Ollama URL"
             />

src/settings/tabs/SearchTab.tsx

@@ -34,7 +34,7 @@ export function SearchTab({ config, resyncToken, onSaved }: SearchTabProps) {
             <TextField
               value={value}
               onChange={setValue}
-              placeholder="http://127.0.0.1:25017"
+              placeholder={config.search.searxng_url}
               errored={errored}
               ariaLabel="SearXNG URL"
             />
@@ -52,7 +52,7 @@ export function SearchTab({ config, resyncToken, onSaved }: SearchTabProps) {
             <TextField
               value={value}
               onChange={setValue}
-              placeholder="http://127.0.0.1:25018"
+              placeholder={config.search.reader_url}
               errored={errored}
               ariaLabel="Reader URL"
             />