Add all scaffolding, design, and decision documentation AKA first commit

src-tauri/src/notes/mod.rs

@@ -0,0 +1,55 @@
+//! Notes assembly & export (Phase 2; PDF/Word in Phase 8). FR-NOTE-*.
+//!
+//! Renders speaker-tagged Markdown from transcript + speaker names (+ optional
+//! summary). Names are resolved here from the mapping; segments keep internal IDs.
+
+use crate::models::{SpeakerInfo, TranscriptSegment};
+use std::path::{Path, PathBuf};
+
+#[derive(Debug, thiserror::Error)]
+pub enum NotesError {
+    #[error("render failed: {0}")]
+    Render(String),
+    #[error("export failed: {0}")]
+    Export(String),
+    #[error("io error: {0}")]
+    Io(#[from] std::io::Error),
+}
+
+#[derive(Debug, Clone, Copy)]
+pub enum ExportFormat {
+    Md,
+    Pdf,
+    Docx,
+    Bundle, // audio + transcript + notes
+}
+
+pub trait NotesRenderer: Send + Sync {
+    /// Build Markdown with speaker-tagged dialogue (+ summary if present).
+    fn to_markdown(
+        &self,
+        segments: &[TranscriptSegment],
+        speakers: &[SpeakerInfo],
+        summary_md: Option<&str>,
+    ) -> String;
+
+    fn export(&self, markdown: &str, dest: &Path, fmt: ExportFormat) -> Result<PathBuf, NotesError>;
+}
+
+pub struct MarkdownNotes;
+
+impl NotesRenderer for MarkdownNotes {
+    fn to_markdown(
+        &self,
+        _segments: &[TranscriptSegment],
+        _speakers: &[SpeakerInfo],
+        _summary_md: Option<&str>,
+    ) -> String {
+        // T2.4: resolve speaker names, group dialogue, prepend summary section.
+        todo!("Phase 2 — assemble Markdown")
+    }
+    fn export(&self, _markdown: &str, _dest: &Path, _fmt: ExportFormat) -> Result<PathBuf, NotesError> {
+        // T2.6 (.md/bundle); T8.4 (pdf/docx via local conversion).
+        todo!("Phase 2/8 — export notes")
+    }
+}