chore: organize solution into module folders (Core/Server/Drivers/Client/Tooling)

Group all 69 projects into category subfolders under src/ and tests/ so the
Rider Solution Explorer mirrors the module structure. Folders: Core, Server,
Drivers (with a nested Driver CLIs subfolder), Client, Tooling.

- Move every project folder on disk with git mv (history preserved as renames).
- Recompute relative paths in 57 .csproj files: cross-category ProjectReferences,
  the lib/ HintPath+None refs in Driver.Historian.Wonderware, and the external
  mxaccessgw refs in Driver.Galaxy and its test project.
- Rebuild ZB.MOM.WW.OtOpcUa.slnx with nested solution folders.
- Re-prefix project paths in functional scripts (e2e, compliance, smoke SQL,
  integration, install).

Build green (0 errors); unit tests pass. Docs left for a separate pass.

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

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/Wire/FocasWireModels.cs

@@ -0,0 +1,131 @@
+namespace ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Wire;
+
+/// <summary>
+///     Return envelope over a parsed wire response. <see cref="Rc"/> carries the FOCAS
+///     <c>EW_*</c> code from the response block — <c>0</c> / <see cref="IsOk"/> means the
+///     call succeeded and <see cref="Value"/> is populated; non-zero means the CNC rejected
+///     the call and <see cref="Value"/> is <c>default</c>. Callers use the RC to distinguish
+///     "feature missing on this series" (<c>EW_FUNC</c> / <c>EW_NOOPT</c>) from genuine
+///     failures.
+/// </summary>
+public readonly record struct FocasResult<T>(short Rc, T? Value)
+{
+    /// <summary>True when <see cref="Rc"/> is zero (<c>EW_OK</c>).</summary>
+    public bool IsOk => Rc == 0;
+}
+
+/// <summary>CNC identity payload returned by <c>cnc_sysinfo</c>.</summary>
+public sealed record WireSysInfo(
+    short AddInfo,
+    short MaxAxis,
+    string CncType,
+    string MachineType,
+    string Series,
+    string Version,
+    string Axes);
+
+/// <summary>Coarse CNC state bits returned by <c>cnc_statinfo</c> — the seven-word status block plus TM mode.</summary>
+public sealed record WireStatus(
+    short Auto,
+    short Run,
+    short Motion,
+    short Mstb,
+    short Emergency,
+    short Alarm,
+    short Edit,
+    short TmMode);
+
+/// <summary>Four-slot position quadruple for one axis: absolute / machine / relative / distance-to-go.</summary>
+public sealed record WireAxisPosition(
+    int Absolute,
+    int Machine,
+    int Relative,
+    int Distance);
+
+/// <summary>
+///     Fast-poll bundle for one axis from <c>cnc_rddynamic2</c> — alarm flags, active program
+///     numbers, sequence number, actual feed rate, actual spindle speed, and the position
+///     quadruple.
+/// </summary>
+public sealed record WireDynamic(
+    int Alarm,
+    int ProgramNumber,
+    int MainProgramNumber,
+    int SequenceNumber,
+    int FeedRate,
+    int SpindleSpeed,
+    WireAxisPosition Axis);
+
+/// <summary>One servo-meter entry from <c>cnc_rdsvmeter</c> — per-axis load percentage (scale by 10^<see cref="Decimal"/>).</summary>
+public sealed record WireServoMeter(
+    short Index,
+    string Name,
+    int Value,
+    short Decimal,
+    short Unit);
+
+/// <summary>One spindle metric slot from <c>cnc_rdspload</c> / <c>cnc_rdspmaxrpm</c>.</summary>
+public sealed record WireSpindleMetric(
+    short Index,
+    int Value);
+
+/// <summary>
+///     One axis-name slot from <c>cnc_rdaxisname</c>. <see cref="Index"/> is the 1-based
+///     axis index (preserved even when the name is empty so callers can pass it to
+///     <c>cnc_rddynamic2</c>).
+/// </summary>
+public readonly record struct WireAxisRecord(short Index, string Name);
+
+/// <summary>One spindle-name slot from <c>cnc_rdspdlname</c>.</summary>
+public readonly record struct WireSpindleRecord(short Index, string Name);
+
+/// <summary>Parameter value returned by <c>cnc_rdparam</c>, interpreted as a scalar Int32.</summary>
+public sealed record WireParameter(
+    short DataNumber,
+    short Type,
+    int Value);
+
+/// <summary>
+///     Macro variable from <c>cnc_rdmacro</c>. Scaled decimal: the callable value is
+///     <c>Value / 10^Decimal</c>.
+/// </summary>
+public sealed record WireMacro(
+    short Number,
+    int Value,
+    short Decimal);
+
+/// <summary>PMC range read-back from <c>pmc_rdpmcrng</c>: one or more values of the requested width.</summary>
+public sealed record WirePmcRange(
+    short Area,
+    short DataType,
+    ushort Start,
+    ushort End,
+    IReadOnlyList<long> Values);
+
+/// <summary>
+///     One active alarm from <c>cnc_rdalmmsg2</c>. Mirrors the vendor <c>ODBALMMSG2</c>
+///     layout; <see cref="AlarmGroup"/> is populated when the wire responder carries it
+///     (currently <c>null</c> for both the 76-byte vendor shape and the 80-byte legacy
+///     shape).
+/// </summary>
+public sealed record WireAlarm(
+    int AlarmNumber,
+    short Type,
+    short Axis,
+    short MessageLength,
+    string Message,
+    int? AlarmGroup = null);
+
+/// <summary>
+///     Executing-program identity from <c>cnc_exeprgname2</c>: the NUL-terminated name and
+///     the trailing 32-bit O-number (null when the wire responder omits the trailing int).
+/// </summary>
+public sealed record WireProgramName(
+    string Name,
+    int? ONumber);
+
+/// <summary>One cumulative timer reading from <c>cnc_rdtimer</c> (minutes + fractional milliseconds).</summary>
+public sealed record WireTimer(
+    short Type,
+    int Minutes,
+    int Milliseconds);