chore(docs): standardize "AIBridge" to "AI Bridge" in documentation (#20831)

cli/testdata/coder_server_--help.golden

@@ -80,7 +80,7 @@ OPTIONS:
           Periodically check for new releases of Coder and inform the owner. The
           check is performed once per day.
 
-AIBRIDGE OPTIONS: 
+AI BRIDGE OPTIONS: 
       --aibridge-anthropic-base-url string, $CODER_AIBRIDGE_ANTHROPIC_BASE_URL (default: https://api.anthropic.com/)
           The base URL of the Anthropic API.
 
@@ -114,9 +114,9 @@ AIBRIDGE OPTIONS:
           Whether to start an in-memory aibridged instance.
 
       --aibridge-inject-coder-mcp-tools bool, $CODER_AIBRIDGE_INJECT_CODER_MCP_TOOLS (default: false)
-          Whether to inject Coder's MCP tools into intercepted AIBridge requests
-          (requires the "oauth2" and "mcp-server-http" experiments to be
-          enabled).
+          Whether to inject Coder's MCP tools into intercepted AI Bridge
+          requests (requires the "oauth2" and "mcp-server-http" experiments to
+          be enabled).
 
       --aibridge-openai-base-url string, $CODER_AIBRIDGE_OPENAI_BASE_URL (default: https://api.openai.com/v1/)
           The base URL of the OpenAI API.

cli/testdata/server-config.yaml.golden

@@ -747,8 +747,8 @@ aibridge:
   # https://docs.claude.com/en/docs/claude-code/settings#environment-variables.
   # (default: global.anthropic.claude-haiku-4-5-20251001-v1:0, type: string)
   bedrock_small_fast_model: global.anthropic.claude-haiku-4-5-20251001-v1:0
-  # Whether to inject Coder's MCP tools into intercepted AIBridge requests (requires
-  # the "oauth2" and "mcp-server-http" experiments to be enabled).
+  # Whether to inject Coder's MCP tools into intercepted AI Bridge requests
+  # (requires the "oauth2" and "mcp-server-http" experiments to be enabled).
   # (default: false, type: bool)
   inject_coder_mcp_tools: false
   # Length of time to retain data such as interceptions and all related records