FIX: prompt engineering for summary prompt (#539)

Prompt was steering incorrectly into the wrong language.

New prompt attempts to be more concise and clear and provides
better guidance about size of summary and how to format it.

lib/automation/report_runner.rb

@@ -140,10 +140,7 @@ Follow the provided writing composition instructions carefully and precisely ste
         prompt =
           DiscourseAi::Completions::Prompt.new(
             system_prompt,
-            messages: [
-              { type: :user, content: input },
-              { type: :model, content: "Here is the report I generated for you" },
-            ],
+            messages: [{ type: :user, content: input }],
           )
 
         result = +""

lib/summarization/strategies/fold_content.rb

@@ -133,20 +133,23 @@ module DiscourseAi
         end
 
         def summarization_prompt(input, opts)
-          insts = <<~TEXT
-            You are a summarization bot that effectively summarize any text
-            Your reply MUST BE a summarized version of the posts I provided, using the first language you detect.
-            I'm NOT interested in anything other than the summary, don't include additional text or comments.
-            You understand and generate Discourse forum Markdown.
-            You format the response, including links, using Markdown.
-            Your summaries are always a cohesive narrative in the form of one or multiple paragraphs.
+          insts = +<<~TEXT
+            You are an advanced summarization bot that generates concise, coherent summaries of provided text.
+
+            - Only include the summary, without any additional commentary.
+            - You understand and generate Discourse forum Markdown; including links, _italics_, **bold**.
+            - Maintain the original language of the text being summarized.
+            - Aim for summaries to be 400 words or less.
 
           TEXT
 
-          insts += <<~TEXT if opts[:resource_path]
-                Each post is formatted as "<POST_NUMBER>) <USERNAME> <MESSAGE> "
-                Try generating links as well the format is #{opts[:resource_path]}/<POST_NUMBER>
-                For example, a link to the 3rd post in the topic would be [post 3](#{opts[:resource_path]}/3)
+          insts << <<~TEXT if opts[:resource_path]
+                - Each post is formatted as "<POST_NUMBER>) <USERNAME> <MESSAGE>"
+                - Cite specific noteworthy posts using the format [NAME](#{opts[:resource_path]}/POST_NUMBER)
+                  - Example: link to the 3rd post by sam: [sam](#{opts[:resource_path]}/3)
+                  - Example: link to the 6th post by jane: [agreed with](#{opts[:resource_path]}/6)
+                  - Example: link to the 13th post by joe: [#13](#{opts[:resource_path]}/13)
+                - When formatting usernames either use @USERNMAE OR [USERNAME](#{opts[:resource_path]}/POST_NUMBER)
               TEXT
 
           prompt = DiscourseAi::Completions::Prompt.new(insts.strip)
@@ -154,23 +157,14 @@ module DiscourseAi
           if opts[:resource_path]
             prompt.push(
               type: :user,
-              content: "<input>1) user1 said: I love Mondays 2) user2 said: I hate Mondays</input>",
+              content:
+                "Here are the posts inside <input></input> XML tags:\n\n<input>1) user1 said: I love Mondays 2) user2 said: I hate Mondays</input>\n\nGenerate a concise, coherent summary of the text above maintaining the original language.",
             )
             prompt.push(
               type: :model,
               content:
                 "Two users are sharing their feelings toward Mondays. [user1](#{opts[:resource_path]}/1) hates them, while [user2](#{opts[:resource_path]}/2) loves them.",
             )
-
-            prompt.push(
-              type: :user,
-              content: "<input>3) usuario1: Amo los lunes 6) usuario2: Odio los lunes</input>",
-            )
-            prompt.push(
-              type: :model,
-              content:
-                "Dos usuarios charlan sobre los lunes. [usuario1](#{opts[:resource_path]}/3) dice que los ama, mientras que [usuario2](#{opts[:resource_path]}/2) los odia.",
-            )
           end
 
           prompt.push(type: :user, content: <<~TEXT.strip)
@@ -180,6 +174,8 @@ module DiscourseAi
           <input>
             #{input}
           </input>
+
+          Generate a concise, coherent summary of the text above maintaining the original language.
           TEXT
 
           prompt