feat: v0.5.16 - migrate to Responses API (#586)

* refactor: migrate from /v1/runs to /v1/responses streaming API

Replace EventSource-based polling with direct SSE streaming via the
/v1/responses endpoint across all server-side callers (chat-run-socket,
context-compressor, gateway-client, agent-clients). Messages are now
written to DB in real-time during streaming, eliminating post-run sync.
Frontend chat store adds tool_call_id tracking for deduplication.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* chore: bump version to 0.5.16 and add changelog

- Persist real API usage to usage table on response.completed
- Remove unused codex_reasoning_items field from message schema
- Fix unused variable warnings in chat-run-socket
- Bump version to 0.5.16
- Add changelog entries for 0.5.16 (8 locales)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

packages/server/src/db/hermes/schemas.ts

@@ -70,7 +70,6 @@ export const MESSAGES_SCHEMA: Record<string, string> = {
   reasoning: 'TEXT',
   reasoning_details: 'TEXT',
   reasoning_content: 'TEXT',
-  codex_reasoning_items: 'TEXT',
 }
 
 export const MESSAGES_INDEX = 'CREATE INDEX IF NOT EXISTS idx_messages_session_id ON messages(session_id)'

packages/server/src/db/hermes/session-store.ts

@@ -45,7 +45,6 @@ export interface HermesMessageRow {
   finish_reason: string | null
   reasoning: string | null
   reasoning_details?: string | null
-  codex_reasoning_items?: string | null
   reasoning_content?: string | null
 }
 
@@ -121,7 +120,6 @@ function mapMessageRow(row: Record<string, unknown>): HermesMessageRow {
     finish_reason: row.finish_reason != null ? String(row.finish_reason) : null,
     reasoning: row.reasoning != null ? String(row.reasoning) : null,
     reasoning_details: row.reasoning_details != null ? String(row.reasoning_details) : null,
-    codex_reasoning_items: row.codex_reasoning_items != null ? String(row.codex_reasoning_items) : null,
     reasoning_content: row.reasoning_content != null ? String(row.reasoning_content) : null,
   }
 }
@@ -343,21 +341,20 @@ export function addMessage(msg: {
   reasoning?: string | null
   reasoning_details?: string | null
   reasoning_content?: string | null
-  codex_reasoning_items?: string | null
 }): number | undefined {
   if (!isSqliteAvailable()) return undefined
   const db = getDb()!
   const toolCallsJson = msg.tool_calls ? JSON.stringify(msg.tool_calls) : null
   const result = db.prepare(
-    `INSERT INTO ${MESSAGES_TABLE} (session_id, role, content, tool_call_id, tool_calls, tool_name, timestamp, token_count, finish_reason, reasoning, reasoning_details, reasoning_content, codex_reasoning_items)
-     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+    `INSERT INTO ${MESSAGES_TABLE} (session_id, role, content, tool_call_id, tool_calls, tool_name, timestamp, token_count, finish_reason, reasoning, reasoning_details, reasoning_content)
+     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
   ).run(
     msg.session_id, msg.role, msg.content,
     msg.tool_call_id ?? null, toolCallsJson, msg.tool_name ?? null,
     msg.timestamp ?? Math.floor(Date.now() / 1000),
     msg.token_count ?? null, msg.finish_reason ?? null,
     msg.reasoning ?? null, msg.reasoning_details ?? null,
-    msg.reasoning_content ?? null, msg.codex_reasoning_items ?? null,
+    msg.reasoning_content ?? null,
   )
   return result.lastInsertRowid as number
 }
@@ -375,13 +372,12 @@ export function addMessages(msgs: Array<{
   reasoning?: string | null
   reasoning_details?: string | null
   reasoning_content?: string | null
-  codex_reasoning_items?: string | null
 }>): void {
   if (!isSqliteAvailable() || msgs.length === 0) return
   const db = getDb()!
   const insert = db.prepare(
-    `INSERT INTO ${MESSAGES_TABLE} (session_id, role, content, tool_call_id, tool_calls, tool_name, timestamp, token_count, finish_reason, reasoning, reasoning_details, reasoning_content, codex_reasoning_items)
-     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+    `INSERT INTO ${MESSAGES_TABLE} (session_id, role, content, tool_call_id, tool_calls, tool_name, timestamp, token_count, finish_reason, reasoning, reasoning_details, reasoning_content)
+     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
   )
   db.exec('BEGIN')
   try {
@@ -393,7 +389,7 @@ export function addMessages(msgs: Array<{
         msg.timestamp ?? Math.floor(Date.now() / 1000),
         msg.token_count ?? null, msg.finish_reason ?? null,
         msg.reasoning ?? null, msg.reasoning_details ?? null,
-        msg.reasoning_content ?? null, msg.codex_reasoning_items ?? null,
+        msg.reasoning_content ?? null,
       )
     }
     db.exec('COMMIT')

packages/server/src/db/hermes/sessions-db.ts

@@ -53,7 +53,6 @@ export interface HermesMessageRow {
   finish_reason: string | null
   reasoning: string | null
   reasoning_details?: string | null
-  codex_reasoning_items?: string | null
   reasoning_content?: string | null
 }
 
@@ -350,7 +349,6 @@ function mapMessageRow(row: Record<string, unknown>): HermesMessageRow {
     finish_reason: normalizeNullableString(row.finish_reason),
     reasoning,
     reasoning_details: normalizeNullableString(row.reasoning_details),
-    codex_reasoning_items: normalizeNullableString(row.codex_reasoning_items),
     reasoning_content: normalizeNullableString(row.reasoning_content),
   }
 }