Update AI Configuration Parsing and Release Notes Prompt

Migrate from assistant::Config static methods to assistant::ConfigBuilder for more robust error handling. The ConfigBuilder returns a result object with both a config value and an error message, enabling better user feedback when configuration parsing fails. Display error dialogs to users when configuration loading fails on the main thread, and fall back to default settings.

Update the git release notes prompt to instruct the AI to fetch commits directly using git commands rather than requiring pre-supplied input. Simplify the prompt structure by removing the placeholder input section.

* AI configuration loading (LLMManager.cpp)
* Release notes generation prompt (Prompts.cpp)
* Assistant submodule update

** Generated by CodeLite. **

Signed-off-by: Eran Ifrah <eran@codelite.org>

Author: eranif

Plugin/ai/LLMManager.cpp

@@ -531,7 +531,8 @@ assistant::Config Manager::MakeConfig()
 {
     std::call_once(config_create_once_flag, [this]() {
         // Should never fail.
-        m_default_config = assistant::Config::FromContent(kDefaultSettings.ToStdString(wxConvUTF8)).value();
+        m_default_config =
+            assistant::ConfigBuilder::FromContent(kDefaultSettings.ToStdString(wxConvUTF8)).config_.value();
 
         // Redirect the library logs to our logging machinery.
         assistant::SetLogSink([](assistant::LogLevel level, std::string msg) {
@@ -558,7 +559,14 @@ assistant::Config Manager::MakeConfig()
 
     // Apply environment variables before we proceed
     EnvSetter env;
-    return assistant::Config::FromFile(res.value().ToStdString(wxConvUTF8)).value_or(m_default_config);
+    auto result = assistant::ConfigBuilder::FromFile(res.value().ToStdString(wxConvUTF8));
+    if (!result.ok()) {
+        if (::wxIsMainThread()) {
+            ::wxMessageBox(result.errmsg_, "CodeLite", wxICON_ERROR | wxOK | wxCENTER);
+            return assistant::ConfigBuilder::FromContent(kDefaultSettings.ToStdString(wxConvUTF8)).config_.value();
+        }
+    }
+    return result.config_.value();
 }
 
 void Manager::Restart()
@@ -682,21 +690,25 @@ bool Manager::ReloadConfig(std::optional<wxString> config_content, bool prompt)
     }
 
     EnvSetter env;
-    auto conf = assistant::Config::FromContent(content.ToStdString(wxConvUTF8));
-    if (conf.has_value()) {
-        m_client_config = std::move(conf.value());
-        // Now we can replace the client instance
-        auto client = assistant::MakeClient(m_client_config).value_or(nullptr);
-        if (!client) {
-            clERROR() << "Could not create new LLM client!" << endl;
-            return false;
+    auto result = assistant::ConfigBuilder::FromContent(content.ToStdString(wxConvUTF8));
+    if (!result.ok()) {
+        if (::wxIsMainThread()) {
+            ::wxMessageBox(result.errmsg_, "CodeLite", wxICON_ERROR | wxOK | wxCENTER);
         }
+        return false;
+    }
 
-        // Start the new client
-        Start(client);
-        return true;
+    m_client_config = std::move(result.config_.value());
+    // Now we can replace the client instance
+    auto client = assistant::MakeClient(m_client_config).value_or(nullptr);
+    if (!client) {
+        clERROR() << "Could not create new LLM client!" << endl;
+        return false;
     }
-    return false;
+
+    // Start the new client
+    Start(client);
+    return true;
 }
 
 void Manager::ClearHistory()
@@ -973,13 +985,9 @@ clStatusOr<wxString> Manager::CreateOrOpenConfig()
     wxString global_config_path = FileManager::GetSettingFileFullPath(kAssistantConfigFile, opts);
     wxString backup_file_path = global_config_path + ".old";
     bool valid_file{false};
-    try {
-        EnvSetter env;
-        auto conf = assistant::Config::FromFile(global_config_path.ToStdString(wxConvUTF8));
-        valid_file = conf.has_value();
-    } catch (const std::exception& e) {
-        valid_file = false;
-    }
+    EnvSetter env;
+    auto result = assistant::ConfigBuilder::FromFile(global_config_path.ToStdString(wxConvUTF8));
+    valid_file = result.ok();
 
     if (!valid_file) {
         // Backup old file

Plugin/ai/Prompts.cpp

@@ -66,8 +66,8 @@ const std::string PROMPT_GIT_RELEASE_NOTES =
     R"(You are an expert technical writer who creates concise, well‑structured release notes for public websites.
 
 Your job:
-1. Read the raw commit list below (one commit per line).
-2. Group the changes into the following sections **only if there is at least one item**:
+1. Obtain all git commits from HEAD to the latest tag. Use `git describe --tags --abbrev=0` to find the latest tag, then `git log <tag>..HEAD --oneline` to list the commits.
+2. Group the commits into the following sections **only if there is at least one item**:
    - **✨ New Features** – new public‑facing functionality.
    - **🐛 Bug Fixes** – corrections of defects.
    - **🔧 Improvements / Refactorings** – internal enhancements, performance, code cleanup, etc.
@@ -87,20 +87,11 @@ Your job:
 
 5. At the top of the document, add a title line with the release version and date, formatted exactly as:
 
-   ```markdown
-   # Release {{VERSION}} – {{RELEASE_DATE}}
-   ```
-
-6. End the notes with a short “_Thank you for using our software!_” line.
-
----
-
-### Input (replace this block with your real data)
-
-```
-{{context}}
+```markdown
+# Release {{VERSION}} – {{RELEASE_DATE}}
 ```
-)";
+
+6. End the notes with a short “_Thank you for using our software!_” line.)";
 
 const std::string PROMPT_GIT_RELEASE_NOTES_MERGE =
     R"(Rephrase the following release notes text. Remove duplicate entries and merge the sections.