agent: lumotia-rebrand — rust workspace crates magnotia-* -> lumotia-*

Phase 2 of the rebrand cascade. Renames all 9 workspace crates from
magnotia-* to lumotia-* plus the src-tauri binary crate name:

- magnotia-ai-formatting   -> lumotia-ai-formatting
- magnotia-audio           -> lumotia-audio
- magnotia-cloud-providers -> lumotia-cloud-providers
- magnotia-core            -> lumotia-core
- magnotia-hotkey          -> lumotia-hotkey
- magnotia-llm             -> lumotia-llm
- magnotia-mcp             -> lumotia-mcp
- magnotia-storage         -> lumotia-storage
- magnotia-transcription   -> lumotia-transcription
- magnotia                 -> lumotia (src-tauri binary)
- magnotia_lib             -> lumotia_lib (src-tauri lib target)

Crate directories (crates/audio/ etc.) stay as-is; only the Cargo.toml
[package] name field changes plus all consumer module imports
(magnotia_core -> lumotia_core, etc.).

Remaining magnotia_* references at this point are intentional and
scoped to later phases: tracing targets (Phase 4), DB setting keys
magnotia_preferences/magnotia_history (Phase 5).

cargo build --workspace passes. cargo test --workspace: 330 pass, 0 fail.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/audio/src/capture.rs

@@ -8,7 +8,7 @@ use regex::Regex;
 use serde::{Deserialize, Serialize};
 use std::sync::OnceLock;
 
-use magnotia_core::error::{MagnotiaError, Result};
+use lumotia_core::error::{MagnotiaError, Result};
 
 const AUDIO_CHANNEL_CAPACITY: usize = 32;
 
@@ -149,7 +149,7 @@ impl MicrophoneCapture {
         for device in devices {
             let name = device_display_name(&device).unwrap_or_default();
             if name == device_name {
-                tracing::info!(target: "magnotia_audio", "start_with_device: opening explicit device '{name}'");
+                tracing::info!(target: "lumotia_audio", "start_with_device: opening explicit device '{name}'");
                 return open_and_validate(device, &name, /* require_audio = */ true);
             }
         }
@@ -196,7 +196,7 @@ impl MicrophoneCapture {
         });
 
         tracing::info!(
-            target: "magnotia_audio",
+            target: "lumotia_audio",
             device_count = all_devices.len(),
             default = %default_name,
             "enumerated input devices"
@@ -211,7 +211,7 @@ impl MicrophoneCapture {
             match open_and_validate(device.clone(), &name, true) {
                 Ok(result) => return Ok(result),
                 Err(e) => {
-                    tracing::warn!(target: "magnotia_audio", device = %name, error = %e, "candidate device rejected");
+                    tracing::warn!(target: "lumotia_audio", device = %name, error = %e, "candidate device rejected");
                 }
             }
         }
@@ -219,7 +219,7 @@ impl MicrophoneCapture {
         // Second pass: accept anything that delivers bytes (monitor sources
         // included). Better to capture from a monitor than fail entirely.
         tracing::warn!(
-            target: "magnotia_audio",
+            target: "lumotia_audio",
             "no non-monitor mic produced audio; falling back to monitor/loopback sources"
         );
         for device in &all_devices {
@@ -227,7 +227,7 @@ impl MicrophoneCapture {
             match open_and_validate(device.clone(), &name, false) {
                 Ok(result) => {
                     tracing::warn!(
-                        target: "magnotia_audio",
+                        target: "lumotia_audio",
                         device = %name,
                         "capturing from likely monitor source; recordings may be silent or contain system audio"
                     );
@@ -367,7 +367,7 @@ fn open_and_validate(
     let format = config.sample_format();
 
     tracing::info!(
-        target: "magnotia_audio",
+        target: "lumotia_audio",
         device = %name,
         sample_rate,
         channels,
@@ -467,7 +467,7 @@ fn open_and_validate(
 
     let rms = (sum_sq / total_samples as f64).sqrt() as f32;
     tracing::info!(
-        target: "magnotia_audio",
+        target: "lumotia_audio",
         device = %name,
         samples = total_samples,
         rms,
@@ -499,7 +499,7 @@ fn open_and_validate(
         }
     }
 
-    tracing::info!(target: "magnotia_audio", device = %name, "selected microphone");
+    tracing::info!(target: "lumotia_audio", device = %name, "selected microphone");
     Ok((
         MicrophoneCapture {
             stream: Some(stream),
@@ -547,7 +547,7 @@ where
         move |err| {
             // Surface stream errors to the live session via err_tx so the
             // frontend can show a toast.
-            tracing::error!(target: "magnotia_audio", error = %err, "capture stream error");
+            tracing::error!(target: "lumotia_audio", error = %err, "capture stream error");
             if err_tx
                 .try_send(CaptureRuntimeError {
                     device_name: err_device_name.clone(),
@@ -560,7 +560,7 @@ where
                 // even if the frontend never received the typed event.
                 let prior = dropped_errors.fetch_add(1, Ordering::Relaxed);
                 tracing::warn!(
-                    target: "magnotia_audio",
+                    target: "lumotia_audio",
                     device = %err_device_name,
                     dropped_error = prior + 1,
                     "capture error channel full; dropping runtime error"

crates/audio/src/concurrency.rs

@@ -1,7 +1,7 @@
 use std::path::Path;
 
-use magnotia_core::error::Result;
-use magnotia_core::types::AudioSamples;
+use lumotia_core::error::Result;
+use lumotia_core::types::AudioSamples;
 
 use crate::decode::decode_audio_file;
 use crate::resample::resample_to_16khz;
@@ -16,6 +16,6 @@ pub async fn decode_and_resample(path: &Path) -> Result<AudioSamples> {
     })
     .await
     .map_err(|e| {
-        magnotia_core::error::MagnotiaError::AudioDecodeFailed(format!("Task join error: {e}"))
+        lumotia_core::error::MagnotiaError::AudioDecodeFailed(format!("Task join error: {e}"))
     })?
 }

crates/audio/src/decode.rs

@@ -9,8 +9,8 @@ use symphonia::core::io::MediaSourceStream;
 use symphonia::core::meta::MetadataOptions;
 use symphonia::core::probe::Hint;
 
-use magnotia_core::error::{MagnotiaError, Result};
-use magnotia_core::types::AudioSamples;
+use lumotia_core::error::{MagnotiaError, Result};
+use lumotia_core::types::AudioSamples;
 
 /// Decode an audio file to mono f32 PCM samples.
 /// Supports all formats symphonia handles: mp3, aac, flac, wav, ogg, etc.

crates/audio/src/resample.rs

@@ -2,9 +2,9 @@ use rubato::{
     Resampler, SincFixedIn, SincInterpolationParameters, SincInterpolationType, WindowFunction,
 };
 
-use magnotia_core::constants::WHISPER_SAMPLE_RATE;
-use magnotia_core::error::{MagnotiaError, Result};
-use magnotia_core::types::AudioSamples;
+use lumotia_core::constants::WHISPER_SAMPLE_RATE;
+use lumotia_core::error::{MagnotiaError, Result};
+use lumotia_core::types::AudioSamples;
 
 /// Resample audio to 16kHz mono using sinc interpolation (rubato).
 /// Returns a new AudioSamples at the target sample rate.

crates/audio/src/streaming_resample.rs

@@ -27,8 +27,8 @@ use rubato::{
     Resampler, SincFixedIn, SincInterpolationParameters, SincInterpolationType, WindowFunction,
 };
 
-use magnotia_core::constants::WHISPER_SAMPLE_RATE;
-use magnotia_core::error::{MagnotiaError, Result};
+use lumotia_core::constants::WHISPER_SAMPLE_RATE;
+use lumotia_core::error::{MagnotiaError, Result};
 
 /// Number of input samples the rubato resampler consumes per `process()`
 /// call. Matches the chunk size used in `resample::resample_to_16khz`.

crates/audio/src/vad.rs

@@ -7,7 +7,7 @@
 // For now, all audio is treated as speech. This matches v0.2 behaviour
 // (no VAD) and doesn't affect core functionality.
 
-use magnotia_core::constants::VAD_SPEECH_THRESHOLD;
+use lumotia_core::constants::VAD_SPEECH_THRESHOLD;
 
 /// Stub speech detector. Treats all audio as speech.
 #[derive(Default)]

crates/audio/src/wav.rs

@@ -1,8 +1,8 @@
 use std::io::BufWriter;
 use std::path::Path;
 
-use magnotia_core::error::{MagnotiaError, Result};
-use magnotia_core::types::AudioSamples;
+use lumotia_core::error::{MagnotiaError, Result};
+use lumotia_core::types::AudioSamples;
 
 /// Append-friendly WAV writer for long-running captures.
 ///