new structure for transcription engine

- found problems with mps
- integrated jinja2 templates for rendering (.tex?)
- raw ui & bad structure

utils/prompts/default_prompt_md.j2

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+Create a complete, structured **Obsidian Markdown** educational summary based on the transcript.
+
+The final document must be written in **{{ language }}**.
+
+Use the transcript strictly as the factual basis:
+- Do NOT invent facts.
+- You may add clarifications and explanations, but they MUST be placed in special blocks.
+- Preserve the logical order and meaning of the original speaker.
+- Transform speech into clear academic exposition.
+- Quotes must be accurate and **<= 25 words**.
+- Do not reference the transcript or the speaker. Write as a stand-alone educational text.
+
+You must follow the template below exactly.
+
+---
+
+# {{ title }}
+
+## Key Ideas
+- bullet points summarizing the main concepts
+
+## Core Concepts and Definitions
+- **Term** — definition
+- **Another Term** — definition
+
+## Detailed Summary
+Write a logically structured, academically clear exposition.  
+Break it into paragraphs, subsections, lists, and quotes.
+
+To include quotes from the transcript, use:
+
+> "{{ quote }}"  
+(Ensure that every quote is ≤ 25 words.)
+
+## Examples and Explanations
+Use examples that appear in the transcript.  
+Additional clarifications must use the following block:
+
+> AI clarification:  
+> Your extended explanation, analogy, or contextual detail.
+
+Short notes should use:
+
+**AI note:** short clarification
+
+## Conclusions and Key Insights
+- summary points
+- what the reader should remember
+
+## Self-Assessment Questions
+- question 1
+- question 2
+- question 3
+
+---
+
+### Transcript (for your reference only):
+{{ transcription }}

utils/prompts/default_prompt_tex.j2

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+Create a clean, structured **LaTeX educational summary** based strictly on the transcript.
+
+The final document must be written in **{{ language }}**.
+
+Guidelines:
+- Use ONLY facts from the transcript as the base.
+- You MAY add explanations, but they MUST appear in designated blocks.
+- Do NOT reference the transcript or the speaker.
+- Maintain the speaker`s logical order.
+- Produce academically clear, structured LaTeX text.
+- Quotes must be accurate and <= 25 words.
+
+Use the structure below.  
+Assume that stylistic environments are already defined in the `.sty` file.
+
+---
+
+\section*{ {{ title }} }
+
+\subsection*{Key Ideas}
+\begin{itemize}
+\item main idea
+\item …
+\end{itemize}
+
+\subsection*{Core Concepts and Definitions}
+\begin{description}
+\item[\textbf{Term}] definition
+\item[\textbf{Another Term}] definition
+\end{description}
+
+\subsection*{Detailed Summary}
+Write a clear, logically structured academic explanation.  
+Break content into paragraphs, subsections, lists.
+
+Quotes from the transcript must be included as:
+
+\begin{quote}
+"{{ quote }}"
+\end{quote}
+
+(Ensure each quote is ≤ 25 words.)
+
+\subsection*{Examples and Explanations}
+
+Examples based on the transcript.
+
+Additional clarifications must use the following custom environment (assumed to exist in the .sty):
+
+\begin{aiclarification}
+Your additional explanation, analogy, or contextual expansion.
+\end{aiclarification}
+
+Short notes should use:
+
+\ainote{short clarification}
+
+\subsection*{Conclusions and Key Insights}
+\begin{itemize}
+\item conclusion
+\item conclusion
+\end{itemize}
+
+\subsection*{Self-Assessment Questions}
+\begin{enumerate}
+\item question
+\item question
+\item question
+\end{enumerate}
+
+---
+
+% Transcript included only for reference (model must not copy or analyze or mention this directly)
+% ======================================================
+% {{ transcription | replace("%", "\\%") }}

utils/prompts/prompt_manager.py

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+from __future__ import annotations
+
+import os
+from jinja2 import Environment, FileSystemLoader, StrictUndefined
+
+
+class PromptManager:
+    """
+    Self-written class for Jinja2 templates especially for summarization.
+
+    Supports:
+    - md
+    - latex
+
+    Usage examples:
+    ```
+    from prompts.prompt_manager import PromptManager
+
+    pm = PromptManager("notecast/prompts")
+
+    markdown_text = pm.render(
+        "markdown_default_prompt.md.j2",
+        language="Russian",
+        title="Calculus - Lecture 1",
+        transcription=raw_transcription_text
+    )
+
+    latex_text = pm.render(
+        "latex_default_prompt.j2",
+        language="Russian",
+        title="Calculus - Lecture 1",
+        transcription=raw_transcription_text
+    )
+    ```
+    """
+
+    def __init__(self, templates_dir: str) -> None:
+        if not os.path.isdir(templates_dir):
+            raise NotADirectoryError(f"Templates directory not found: {templates_dir}")
+
+        self.templates_dir = templates_dir
+
+        self.env = Environment(
+            loader=FileSystemLoader(self.templates_dir),
+            autoescape=False,
+            trim_blocks=True,
+            lstrip_blocks=True,
+            undefined=StrictUndefined
+        )
+
+    def list_templates(self) -> list[str]:
+        templates = []
+        for file in os.listdir(self.templates_dir):
+            if file.endswith(".j2"):
+                templates.append(file)
+        return templates
+
+    def load(self, template_name: str):
+        try:
+            return self.env.get_template(template_name)
+        except Exception as e:
+            raise RuntimeError(f"Failed to load template '{template_name}': {e}")
+
+    def render(
+        self,
+        template_name: str,
+        *,
+        language: str,
+        title: str,
+        transcription: str
+    ) -> str:
+        template = self.load(template_name)
+
+        return template.render(
+            language=language,
+            title=title,
+            transcription=transcription
+        )