Julia: ignore *.jl.*.mem and CondaPkg's project-local environment

Replaces the previous contents of this branch, which added editor/OS and
shared-library rules that belong in Global/ per the contributing guidelines.

Two changes remain, both scoped to Julia.gitignore:

* `*.jl.*.mem` — `--track-allocation` writes `<file>.jl.<pid>.mem`, so the
  existing `*.jl.mem` rule never matches the files Julia actually produces.
  This mirrors the `--code-coverage` section, which already carries both
  `*.jl.cov` and `*.jl.*.cov`.

* `.CondaPkg/` — CondaPkg creates this directory inside the active project
  and populates it with a machine-specific Conda environment.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Julia.gitignore

@@ -4,6 +4,7 @@
 
 # Files generated by invoking Julia with --track-allocation
 *.jl.mem
+*.jl.*.mem
 
 # System-specific files and directories generated by the BinaryProvider and BinDeps packages
 # They contain absolute paths specific to the host computer, and so should not be committed
@@ -27,11 +28,5 @@ Manifest*.toml
 LocalPreferences.toml
 JuliaLocalPreferences.toml
 
-# Files generated by the Revise package to store local preferences
+# Conda environment and metadata created in the project directory by the CondaPkg package
-.history
+.CondaPkg/
-.julia/
-
-# Common temporary files and directories created by editors and operating systems
-*.so
-*.dylib
-*.dll