fix(ai-providers): keep custom header editing stable in modals

src/components/providers/ClaudeSection/ClaudeModal.tsx

@@ -6,7 +6,7 @@ import { Input } from '@/components/ui/Input';
 import { Modal } from '@/components/ui/Modal';
 import { ModelInputList, modelsToEntries } from '@/components/ui/ModelInputList';
 import type { ProviderKeyConfig } from '@/types';
-import { buildHeaderObject, headersToEntries } from '@/utils/headers';
+import { headersToEntries } from '@/utils/headers';
 import { excludedModelsToText } from '../utils';
 import type { ProviderFormState, ProviderModalProps } from '../types';
 
@@ -19,7 +19,7 @@ const buildEmptyForm = (): ProviderFormState => ({
   prefix: '',
   baseUrl: '',
   proxyUrl: '',
-  headers: {},
+  headers: [],
   models: [],
   excludedModels: [],
   modelEntries: [{ name: '', alias: '' }],
@@ -43,7 +43,7 @@ export function ClaudeModal({
       // eslint-disable-next-line react-hooks/set-state-in-effect
       setForm({
         ...initialData,
-        headers: initialData.headers ?? {},
+        headers: headersToEntries(initialData.headers),
         modelEntries: modelsToEntries(initialData.models),
         excludedText: excludedModelsToText(initialData.excludedModels),
       });
@@ -95,8 +95,8 @@ export function ClaudeModal({
         onChange={(e) => setForm((prev) => ({ ...prev, proxyUrl: e.target.value }))}
       />
       <HeaderInputList
-        entries={headersToEntries(form.headers)}
-        onChange={(entries) => setForm((prev) => ({ ...prev, headers: buildHeaderObject(entries) }))}
+        entries={form.headers}
+        onChange={(entries) => setForm((prev) => ({ ...prev, headers: entries }))}
         addLabel={t('common.custom_headers_add')}
         keyPlaceholder={t('common.custom_headers_key_placeholder')}
         valuePlaceholder={t('common.custom_headers_value_placeholder')}

src/components/providers/CodexSection/CodexModal.tsx

@@ -5,7 +5,7 @@ import { HeaderInputList } from '@/components/ui/HeaderInputList';
 import { Input } from '@/components/ui/Input';
 import { Modal } from '@/components/ui/Modal';
 import type { ProviderKeyConfig } from '@/types';
-import { buildHeaderObject, headersToEntries } from '@/utils/headers';
+import { headersToEntries } from '@/utils/headers';
 import { modelsToEntries } from '@/components/ui/ModelInputList';
 import { excludedModelsToText } from '../utils';
 import type { ProviderFormState, ProviderModalProps } from '../types';
@@ -19,7 +19,7 @@ const buildEmptyForm = (): ProviderFormState => ({
   prefix: '',
   baseUrl: '',
   proxyUrl: '',
-  headers: {},
+  headers: [],
   models: [],
   excludedModels: [],
   modelEntries: [{ name: '', alias: '' }],
@@ -43,7 +43,7 @@ export function CodexModal({
       // eslint-disable-next-line react-hooks/set-state-in-effect
       setForm({
         ...initialData,
-        headers: initialData.headers ?? {},
+        headers: headersToEntries(initialData.headers),
         modelEntries: modelsToEntries(initialData.models),
         excludedText: excludedModelsToText(initialData.excludedModels),
       });
@@ -95,8 +95,8 @@ export function CodexModal({
         onChange={(e) => setForm((prev) => ({ ...prev, proxyUrl: e.target.value }))}
       />
       <HeaderInputList
-        entries={headersToEntries(form.headers)}
-        onChange={(entries) => setForm((prev) => ({ ...prev, headers: buildHeaderObject(entries) }))}
+        entries={form.headers}
+        onChange={(entries) => setForm((prev) => ({ ...prev, headers: entries }))}
         addLabel={t('common.custom_headers_add')}
         keyPlaceholder={t('common.custom_headers_key_placeholder')}
         valuePlaceholder={t('common.custom_headers_value_placeholder')}

src/components/providers/GeminiSection/GeminiModal.tsx

@@ -5,7 +5,7 @@ import { HeaderInputList } from '@/components/ui/HeaderInputList';
 import { Input } from '@/components/ui/Input';
 import { Modal } from '@/components/ui/Modal';
 import type { GeminiKeyConfig } from '@/types';
-import { buildHeaderObject, headersToEntries } from '@/utils/headers';
+import { headersToEntries } from '@/utils/headers';
 import { excludedModelsToText } from '../utils';
 import type { GeminiFormState, ProviderModalProps } from '../types';
 
@@ -17,7 +17,7 @@ const buildEmptyForm = (): GeminiFormState => ({
   apiKey: '',
   prefix: '',
   baseUrl: '',
-  headers: {},
+  headers: [],
   excludedModels: [],
   excludedText: '',
 });
@@ -39,7 +39,7 @@ export function GeminiModal({
       // eslint-disable-next-line react-hooks/set-state-in-effect
       setForm({
         ...initialData,
-        headers: initialData.headers ?? {},
+        headers: headersToEntries(initialData.headers),
         excludedText: excludedModelsToText(initialData.excludedModels),
       });
       return;
@@ -91,8 +91,8 @@ export function GeminiModal({
         onChange={(e) => setForm((prev) => ({ ...prev, baseUrl: e.target.value }))}
       />
       <HeaderInputList
-        entries={headersToEntries(form.headers)}
-        onChange={(entries) => setForm((prev) => ({ ...prev, headers: buildHeaderObject(entries) }))}
+        entries={form.headers}
+        onChange={(entries) => setForm((prev) => ({ ...prev, headers: entries }))}
         addLabel={t('common.custom_headers_add')}
         keyPlaceholder={t('common.custom_headers_key_placeholder')}
         valuePlaceholder={t('common.custom_headers_value_placeholder')}

src/components/providers/VertexSection/VertexModal.tsx

@@ -6,7 +6,7 @@ import { Input } from '@/components/ui/Input';
 import { Modal } from '@/components/ui/Modal';
 import { ModelInputList, modelsToEntries } from '@/components/ui/ModelInputList';
 import type { ProviderKeyConfig } from '@/types';
-import { buildHeaderObject, headersToEntries } from '@/utils/headers';
+import { headersToEntries } from '@/utils/headers';
 import type { ProviderModalProps, VertexFormState } from '../types';
 
 interface VertexModalProps extends ProviderModalProps<ProviderKeyConfig, VertexFormState> {
@@ -18,7 +18,7 @@ const buildEmptyForm = (): VertexFormState => ({
   prefix: '',
   baseUrl: '',
   proxyUrl: '',
-  headers: {},
+  headers: [],
   models: [],
   modelEntries: [{ name: '', alias: '' }],
 });
@@ -40,7 +40,7 @@ export function VertexModal({
       // eslint-disable-next-line react-hooks/set-state-in-effect
       setForm({
         ...initialData,
-        headers: initialData.headers ?? {},
+        headers: headersToEntries(initialData.headers),
         modelEntries: modelsToEntries(initialData.models),
       });
       return;
@@ -94,8 +94,8 @@ export function VertexModal({
         onChange={(e) => setForm((prev) => ({ ...prev, proxyUrl: e.target.value }))}
       />
       <HeaderInputList
-        entries={headersToEntries(form.headers)}
-        onChange={(entries) => setForm((prev) => ({ ...prev, headers: buildHeaderObject(entries) }))}
+        entries={form.headers}
+        onChange={(entries) => setForm((prev) => ({ ...prev, headers: entries }))}
         addLabel={t('common.custom_headers_add')}
         keyPlaceholder={t('common.custom_headers_key_placeholder')}
         valuePlaceholder={t('common.custom_headers_value_placeholder')}

src/components/providers/types.ts

@@ -32,14 +32,19 @@ export interface AmpcodeFormState {
   mappingEntries: ModelEntry[];
 }
 
-export type GeminiFormState = GeminiKeyConfig & { excludedText: string };
+export type GeminiFormState = Omit<GeminiKeyConfig, 'headers'> & {
+  headers: HeaderEntry[];
+  excludedText: string;
+};
 
-export type ProviderFormState = ProviderKeyConfig & {
+export type ProviderFormState = Omit<ProviderKeyConfig, 'headers'> & {
+  headers: HeaderEntry[];
   modelEntries: ModelEntry[];
   excludedText: string;
 };
 
-export type VertexFormState = Omit<ProviderKeyConfig, 'excludedModels'> & {
+export type VertexFormState = Omit<ProviderKeyConfig, 'headers' | 'excludedModels'> & {
+  headers: HeaderEntry[];
   modelEntries: ModelEntry[];
 };