Release fw 0.8.4: doc sync, System UI, BT/FM polish.

Align README, manual, and backlog to 0.8.4; add Web UI System tab for OTA/DSP uploads, serial in health header, FM seek down, and BT1035 paired list plus auto-reconnect API.

Co-authored-by: Cursor <cursoragent@cursor.com>

Software/docs/manual/ch-api.tex

@@ -6,7 +6,7 @@ implemented in \texttt{SetupWebServer}. Request bodies are parsed into
 domain types in the pure core (\texttt{components/core}) before any
 persistence or driver call. Exact C++ signatures live in the generated
 Doxygen output under \texttt{docs/api/}; this chapter documents the
-wire protocol and behaviour as shipped in firmware~0.8.3.
+wire protocol and behaviour as shipped in firmware~0.8.4.
 
 \section{Transport and reachability}
 
@@ -36,7 +36,7 @@ Returns a health-check DTO serialised by
 
 \begin{drnote}[Response schema]
 \begin{drcode}[JSON]
-{"status":"ok","fw":"0.8.3","serialNumber":"0004A3123456",
+{"status":"ok","fw":"0.8.4","serialNumber":"0004A3123456",
  "chips":{"si4684":true,"adau1701":true,"bt1035":true}}
 \end{drcode}
 \begin{itemize}
@@ -180,9 +180,19 @@ Success response: \texttt{\{"status":"playing"\}}. HTTP status:
 \subsection{\texttt{POST /api/tuner/seek}}
 \label{sec:api-tuner-seek}
 
-Seeks FM upward (no request body). Returns
-\texttt{\{"frequency\_khz":...\}} on success. HTTP status: \textbf{200 OK};
-\textbf{409} on seek failure.
+Seeks FM in the requested direction. Optional JSON body parsed by
+\texttt{core::parseTunerSeekJson()}; an empty body defaults to upward seek.
+Returns \texttt{\{"frequency\_khz":...\}} on success. HTTP status:
+\textbf{200 OK}; \textbf{400} for invalid \texttt{direction}; \textbf{409} on
+seek failure.
+
+\begin{drnote}[Request schema]
+\begin{drcode}[JSON]
+{"direction":"up"}
+\end{drcode}
+Use \texttt{"down"} for downward seek. Omit the body or send \texttt{{}}
+for upward seek (backward compatible).
+\end{drnote}
 
 \subsection{\texttt{GET /api/audio/profile}}
 \label{sec:api-audio-profile-get}
@@ -309,13 +319,14 @@ Adjusts bass emphasis via a PEQ overlay on bands 1--2 (100\,Hz /
 \subsection{\texttt{GET /api/bluetooth/status}}
 \label{sec:api-bluetooth-status}
 
-Returns BT1035 boot flag, whether discoverable mode was requested, and the
-last read A2DP state. Serialised by
-\texttt{core::serializeBluetoothStatusJson()}.
+Returns BT1035 boot flag, whether discoverable mode was requested, the
+last read A2DP state, module friendly name, and auto-reconnect count.
+Serialised by \texttt{core::serializeBluetoothStatusJson()}.
 
 \begin{drnote}[Response schema]
 \begin{drcode}[JSON]
-{"booted":true,"pairing":false,"a2dp":"standby"}
+{"booted":true,"pairing":false,"a2dp":"standby",
+ "device_name":"DigiRadio-A1B2","auto_reconnect":3}
 \end{drcode}
 \end{drnote}
 
@@ -336,6 +347,31 @@ Leaves discoverable mode (\texttt{AT+PAIR=0}). Success:
 
 Releases the current A2DP session (\texttt{AT+A2DPDISC}).
 
+\subsection{\texttt{GET /api/bluetooth/paired}}
+\label{sec:api-bluetooth-paired}
+
+Returns paired remotes from \texttt{AT+PLIST}, serialised by
+\texttt{core::serializeBluetoothPairedJson()}.
+
+\begin{drnote}[Response schema]
+\begin{drcode}[JSON]
+{"devices":[{"index":1,"mac":"001122334455","name":"Phone"}]}
+\end{drcode}
+\end{drnote}
+
+\subsection{\texttt{POST /api/bluetooth/auto-reconnect}}
+\label{sec:api-bluetooth-auto-reconnect}
+
+Sets the module auto-reconnect retry count (\texttt{AT+AUTOCONN=0..15}).
+Body parsed by \texttt{core::parseBluetoothAutoReconnectJson()}.
+
+\begin{drnote}[Request schema]
+\begin{drcode}[JSON]
+{"times":3}
+\end{drcode}
+Success: \texttt{\{"status":"saved"\}}.
+\end{drnote}
+
 % ------------------------------------------------------------------
 % Station presets (Slice 4)
 % ------------------------------------------------------------------

Software/docs/manual/ch-bt1035.tex

@@ -153,6 +153,9 @@ updating \texttt{core::Bt1035AtCommand}, the manual, and a host test.
     \texttt{PairHidden}       & \texttt{AT+PAIR=0} & Leave discoverable mode \\
     \texttt{A2dpStat}         & \texttt{AT+A2DPSTAT} & Read link state \\
     \texttt{A2dpDisconnect}   & \texttt{AT+A2DPDISC} & Release A2DP session \\
+    \texttt{QueryName}        & \texttt{AT+NAME}     & Read module friendly name \\
+    \texttt{QueryAutoConn}    & \texttt{AT+AUTOCONN} & Read auto-reconnect count \\
+    \texttt{QueryPairedList}  & \texttt{AT+PLIST}    & List paired remotes \\
     \bottomrule
   \end{tabular}
   \caption{Enumerated AT commands (\texttt{core::Bt1035AtCommand}). Boot
@@ -179,6 +182,10 @@ updating \texttt{core::Bt1035AtCommand}, the manual, and a host test.
     \texttt{leavePairingMode()} & \texttt{AT+PAIR=0} \\
     \texttt{queryA2dpState()} & \texttt{AT+A2DPSTAT}, parse \texttt{+A2DPSTAT=} \\
     \texttt{disconnectA2dp()} & \texttt{AT+A2DPDISC} \\
+    \texttt{queryDeviceName()} & \texttt{AT+NAME}, parse \texttt{+NAME=} \\
+    \texttt{queryAutoReconnect()} & \texttt{AT+AUTOCONN}, parse \texttt{+AUTOCONN=} \\
+    \texttt{setAutoReconnect(times)} & \texttt{AT+AUTOCONN=n} (0--15) \\
+    \texttt{queryPairedList()} & \texttt{AT+PLIST}, parse \texttt{+PLIST=} lines \\
     \bottomrule
   \end{tabular}
   \caption{Public driver API.}
@@ -240,8 +247,8 @@ if (auto r = bt.sendCommand(core::Bt1035AtCommand::AuxLineIn); !r) {
 \label{sec:bt1035-reading}
 
 \begin{itemize}
-  \item Feasycom FSC-BT1035 AT command manual (vendor) --- full command set
-        for name, paired-device list, and reconnect not yet wrapped by firmware.
+  \item Feasycom FSC-BT1035 AT command manual (vendor) --- full command set;
+        firmware wraps name, paired list, and auto-reconnect for the Web UI.
   \item Chapter~\ref{ch:hardware} --- pin map and I\textsuperscript{2}S routing.
   \item Chapter~\ref{ch:adau1701} --- DSP output that feeds the module.
   \item \texttt{components/core/test/bt1035\_at\_test.cpp} --- init sequence test.

Software/docs/manual/ch-classes.tex

@@ -16,7 +16,7 @@ added in the same change that introduces the class. A tooling check keeps
 this chapter in step with the code, so it is always current.
 \end{drnote}
 
-The class reference tracks firmware~0.8.3 on \texttt{main}. Public classes
+The class reference tracks firmware~0.8.4 on \texttt{main}. Public classes
 are grouped by layer: domain core, application services, and hardware drivers.
 
 % ------------------------------------------------------------------
@@ -154,6 +154,12 @@ are included. Wrong-band calls return \texttt{Si4684Error::WrongBand}.
 Register-level opcodes remain private; see \texttt{Si4684Types.hpp} for status
 DTOs. Full DAB/FM tuning guide: Chapter~\ref{ch:si4684}.
 
+\section{Bt1035PairedDevice}\label{cls:Bt1035PairedDevice}
+Plain DTO for one \texttt{+PLIST=} line from the FSC-BT1035: paired-record
+index (1--8), 12-digit MAC, and optional friendly name. Parsed by
+\texttt{core::parseBt1035PairedListResponse()} and serialised on
+\texttt{GET /api/bluetooth/paired}.
+
 \section{Bt1035Driver}\label{cls:Bt1035Driver}
 UART driver for the FSC-BT1035 (Chapter~\ref{ch:bt1035}). \texttt{boot()}
 pulses RESET\#, opens UART2 with RTS/CTS, and runs

Software/docs/manual/ch-si4684.tex

@@ -319,7 +319,7 @@ The setup UI and REST clients use \texttt{tuner::TunerService}, which wraps
       FM  & \texttt{\{"band":"fm","frequency\_khz":64000..108000\}} \\
     \texttt{GET /api/tuner/services} & DAB only & Programme list for ensemble \\
     \texttt{POST /api/tuner/play}    & DAB only & Start \texttt{service\_id}/\texttt{component\_id} \\
-    \texttt{POST /api/tuner/seek}    & FM only  & Seek up, return new kHz \\
+    \texttt{POST /api/tuner/seek}    & FM only  & Seek up/down, return new kHz \\
     \texttt{GET /api/tuner/status}   & both     & Locked state, RSQ or DIGRAD \\
     \bottomrule
   \end{tabular}

Software/docs/manual/manual.tex

@@ -30,7 +30,7 @@
 \vfill
 {\color{drInk}\large Michele Bigi\par}
 \vspace{2mm}
-{\color{drGray}Firmware 0.8.3 \quad\textbullet\quad 2026\par}
+{\color{drGray}Firmware 0.8.4 \quad\textbullet\quad 2026\par}
 \vspace{2mm}
 {\color{drGray}Hardware: CERN-OHL-S v2 \quad\textbullet\quad Firmware: Apache-2.0\par}
 \vspace{2mm}