Initial commit: data-server leaf crate extracted from myc

High-performance, thread-safe loader and cache for binary market data
files (M1/tick). No dependency on the rest of myc; only chrono, regex, zip.

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

README.md

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+# data-server
+
+High-performance, thread-safe loader and cache for binary market data files
+(Pepperstone M1 / tick format).
+
+Extracted from the `myc` project as a standalone, dependency-free leaf crate
+(only `chrono`, `regex`, `zip`).
+
+## Usage
+
+```toml
+# Cargo.toml of the consuming project
+data-server = { git = "http://192.168.178.103:3000/Brummel/data-server.git", branch = "main" }
+```
+
+For local co-development, override with a per-machine `.cargo/config.toml`:
+
+```toml
+paths = ["/home/brummel/dev/libs/data-server"]
+```