Add Linux-native cTrader cBot build/run scaffold

Build cBots in C# and compile them to .algo entirely on Linux via the
official cTrader.Automate NuGet package + 'dotnet build' — no Windows and
no cTrader desktop app. Run/backtest headless through Spotware's official
cTrader console Docker image.

Includes:
- src/SampleCBot: example SMA-crossover cBot (SDK-style net6.0 class library)
- scripts/install-dotnet.sh: root-free local .NET SDK install (~/.dotnet)
- scripts/build.sh: dotnet build -> dist/<ProjectName>.algo, with a workaround
  for cTrader.Automate naming the .algo after the project's parent folder
- scripts/run-console.sh: wrapper over ghcr.io/spotware/ctrader-console
- docs/research-findings.md: sourced research; .algo verified as a proprietary
  'algo'-magic container (not a ZIP); build verified end to end on Linux

CLAUDE.md

@@ -0,0 +1,33 @@
+# cTrader cBot scaffold — project rules
+
+A Linux-native toolchain for building cTrader cBots in C# and compiling them to
+`.algo`, plus running/backtesting them headless via Spotware's official cTrader CLI
+Docker image. No Windows, no cTrader desktop app. See `README.md` and
+`docs/research-findings.md`.
+
+## Domain facts (load-bearing, verified)
+
+- cBots are .NET 6 class libraries referencing the **official** NuGet package
+  `cTrader.Automate` (owner **spotware**). Do **not** use the third-party `cAlgo.API`
+  package — it is not the Spotware SDK.
+- `dotnet build` emits the `.algo`; the cTrader desktop app is not needed to compile.
+- `.algo` is a proprietary, encrypted container (file magic = ASCII `algo`), not a ZIP.
+- `cTrader.Automate` 1.0.17 names the `.algo` after the project's **parent folder**
+  (no override property); `scripts/build.sh` renames artifacts to `<ProjectName>.algo`.
+- Run/backtest on Linux requires cTrader 5.4+ console image (`ghcr.io/spotware/ctrader-console`).
+
+## Conventions
+
+- Everything committed is **English** (code, comments, docs, commit messages).
+- New cBots go under `src/<BotName>/`, one class-library project each.
+
+## Skills plugin: project facts
+
+- **Code roots:** `src/` (cBots/indicators), `scripts/` (toolchain).
+- **Build command:** `./scripts/build.sh` (wraps `dotnet build -c Release`, collects
+  `dist/<ProjectName>.algo`). Requires the .NET SDK on PATH or in `~/.dotnet`
+  (`./scripts/install-dotnet.sh`).
+- **Test command:** none yet (no test project). Build success + a valid `.algo`
+  (magic bytes `algo`) is the current acceptance check.
+- **Run/backtest:** `./scripts/run-console.sh` (Docker, official cTrader console).
+- **Issue tracker:** none yet.