feat: completions update, create promptrequest, LLM flag rename, ACP content fix

- Add prompts/promptrequests to shell completions (fish + bash)
- Add approve, setup, prompt, promptrequest commands to completions
- Add `create promptrequest` CLI command (POST /projects/:name/promptrequests)
- Rename --proxy-mode-llm-provider/model to --llm-provider/model
- Fix ACP client: handle single-object content format from real Gemini
- Add tests for single-object content and agent_thought_chunk filtering

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

completions/mcpctl.fish

@@ -3,7 +3,7 @@
 # Erase any stale completions from previous versions
 complete -c mcpctl -e
 
-set -l commands status login logout config get describe delete logs create edit apply backup restore mcp help
+set -l commands status login logout config get describe delete logs create edit apply backup restore mcp approve help
 set -l project_commands attach-server detach-server get describe delete logs create edit help
 
 # Disable file completions by default
@@ -28,7 +28,7 @@ function __mcpctl_has_project
 end
 
 # Helper: check if a resource type has been selected after get/describe/delete/edit
-set -l resources servers instances secrets templates projects users groups rbac
+set -l resources servers instances secrets templates projects users groups rbac prompts promptrequests
 
 function __mcpctl_needs_resource_type
     set -l tokens (commandline -opc)
@@ -36,11 +36,11 @@ function __mcpctl_needs_resource_type
     for tok in $tokens
         if $found_cmd
             # Check if next token after get/describe/delete/edit is a resource type
-            if contains -- $tok servers instances secrets templates projects users groups rbac
+            if contains -- $tok servers instances secrets templates projects users groups rbac prompts promptrequests
                 return 1 # resource type already present
             end
         end
-        if contains -- $tok get describe delete edit
+        if contains -- $tok get describe delete edit approve
             set found_cmd true
         end
     end
@@ -55,12 +55,12 @@ function __mcpctl_get_resource_type
     set -l found_cmd false
     for tok in $tokens
         if $found_cmd
-            if contains -- $tok servers instances secrets templates projects users groups rbac
+            if contains -- $tok servers instances secrets templates projects users groups rbac prompts promptrequests
                 echo $tok
                 return
             end
         end
-        if contains -- $tok get describe delete edit
+        if contains -- $tok get describe delete edit approve
             set found_cmd true
         end
     end
@@ -139,6 +139,7 @@ complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_
 complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_from $commands" -a apply -d 'Apply configuration from file'
 complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_from $commands" -a backup -d 'Backup configuration'
 complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_from $commands" -a restore -d 'Restore from backup'
+complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_from $commands" -a approve -d 'Approve a prompt request'
 complete -c mcpctl -n "not __mcpctl_has_project; and not __fish_seen_subcommand_from $commands" -a help -d 'Show help'
 
 # Project-scoped commands (with --project)
@@ -157,7 +158,7 @@ complete -c mcpctl -n "__fish_seen_subcommand_from get describe delete; and __mc
 complete -c mcpctl -n "__fish_seen_subcommand_from edit; and __mcpctl_needs_resource_type" -a 'servers projects' -d 'Resource type'
 
 # Resource names — after resource type is selected
-complete -c mcpctl -n "__fish_seen_subcommand_from get describe delete edit; and not __mcpctl_needs_resource_type" -a '(__mcpctl_resource_names)' -d 'Resource name'
+complete -c mcpctl -n "__fish_seen_subcommand_from get describe delete edit approve; and not __mcpctl_needs_resource_type" -a '(__mcpctl_resource_names)' -d 'Resource name'
 
 # Helper: check if attach-server/detach-server already has a server argument
 function __mcpctl_needs_server_arg
@@ -196,22 +197,25 @@ complete -c mcpctl -n "__fish_seen_subcommand_from login" -l email -d 'Email add
 complete -c mcpctl -n "__fish_seen_subcommand_from login" -l password -d 'Password' -x
 
 # config subcommands
-set -l config_cmds view set path reset claude claude-generate impersonate
+set -l config_cmds view set path reset claude claude-generate setup impersonate
 complete -c mcpctl -n "__fish_seen_subcommand_from config; and not __fish_seen_subcommand_from $config_cmds" -a view -d 'Show configuration'
 complete -c mcpctl -n "__fish_seen_subcommand_from config; and not __fish_seen_subcommand_from $config_cmds" -a set -d 'Set a config value'
 complete -c mcpctl -n "__fish_seen_subcommand_from config; and not __fish_seen_subcommand_from $config_cmds" -a path -d 'Show config file path'
 complete -c mcpctl -n "__fish_seen_subcommand_from config; and not __fish_seen_subcommand_from $config_cmds" -a reset -d 'Reset to defaults'
 complete -c mcpctl -n "__fish_seen_subcommand_from config; and not __fish_seen_subcommand_from $config_cmds" -a claude -d 'Generate .mcp.json for project'
+complete -c mcpctl -n "__fish_seen_subcommand_from config; and not __fish_seen_subcommand_from $config_cmds" -a setup -d 'Configure LLM provider'
 complete -c mcpctl -n "__fish_seen_subcommand_from config; and not __fish_seen_subcommand_from $config_cmds" -a impersonate -d 'Impersonate a user'
 
 # create subcommands
-set -l create_cmds server secret project user group rbac
+set -l create_cmds server secret project user group rbac prompt promptrequest
 complete -c mcpctl -n "__fish_seen_subcommand_from create; and not __fish_seen_subcommand_from $create_cmds" -a server -d 'Create a server'
 complete -c mcpctl -n "__fish_seen_subcommand_from create; and not __fish_seen_subcommand_from $create_cmds" -a secret -d 'Create a secret'
 complete -c mcpctl -n "__fish_seen_subcommand_from create; and not __fish_seen_subcommand_from $create_cmds" -a project -d 'Create a project'
 complete -c mcpctl -n "__fish_seen_subcommand_from create; and not __fish_seen_subcommand_from $create_cmds" -a user -d 'Create a user'
 complete -c mcpctl -n "__fish_seen_subcommand_from create; and not __fish_seen_subcommand_from $create_cmds" -a group -d 'Create a group'
 complete -c mcpctl -n "__fish_seen_subcommand_from create; and not __fish_seen_subcommand_from $create_cmds" -a rbac -d 'Create an RBAC binding'
+complete -c mcpctl -n "__fish_seen_subcommand_from create; and not __fish_seen_subcommand_from $create_cmds" -a prompt -d 'Create an approved prompt'
+complete -c mcpctl -n "__fish_seen_subcommand_from create; and not __fish_seen_subcommand_from $create_cmds" -a promptrequest -d 'Create a prompt request'
 
 # logs options
 complete -c mcpctl -n "__fish_seen_subcommand_from logs" -l tail -d 'Number of lines' -x
@@ -227,6 +231,9 @@ complete -c mcpctl -n "__fish_seen_subcommand_from restore" -s i -l input -d 'In
 complete -c mcpctl -n "__fish_seen_subcommand_from restore" -s p -l password -d 'Decryption password' -x
 complete -c mcpctl -n "__fish_seen_subcommand_from restore" -s c -l conflict -d 'Conflict strategy' -xa 'skip overwrite fail'
 
+# approve: first arg is resource type (promptrequest only), second is name
+complete -c mcpctl -n "__fish_seen_subcommand_from approve; and __mcpctl_needs_resource_type" -a 'promptrequest' -d 'Resource type'
+
 # apply takes a file
 complete -c mcpctl -n "__fish_seen_subcommand_from apply" -s f -l file -d 'Configuration file' -rF
 complete -c mcpctl -n "__fish_seen_subcommand_from apply" -F