Simplify telemetry to anonymous gists only, remove token complexity

- Replace complex GitHub token authentication with anonymous gists
- Remove all GitHub authentication, token setup, and permission handling
- Use simple HTTP POST to GitHub gist API (no auth required)
- Remove GitHub.jl dependency, keep only HTTP and JSON
- Clean fallback to local file saves when gist creation fails
- Eliminate user friction - telemetry just works without setup
- Much simpler codebase and user experience
- Zero authentication barriers for community data sharing

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: ChrisRackauckas

lib/LinearSolveAutotune/Project.toml

@@ -9,7 +9,6 @@ BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"
 Base64 = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
 CSV = "336ed68f-0bac-5ca0-87d4-7b16caf5d00b"
 DataFrames = "a93c6f00-e57d-5684-b7b6-d8193f3e46c0"
-GitHub = "bc5e4493-9b4d-5f90-b8aa-2b2bcaad7a26"
 HTTP = "cd3eb016-35fb-5094-929b-558a96fad6f3"
 JSON = "682c06a0-de6a-54ab-a142-c8b1cf79cde6"
 Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
@@ -37,7 +36,6 @@ BenchmarkTools = "1"
 Base64 = "1"
 CSV = "0.10"
 DataFrames = "1"
-GitHub = "5"
 HTTP = "1"
 JSON = "0.21"
 Plots = "1"

lib/LinearSolveAutotune/src/LinearSolveAutotune.jl

@@ -15,7 +15,6 @@ using Base64
 using RecursiveFactorization  # Hard dependency to ensure RFLUFactorization is available
 
 # Optional dependencies for telemetry and plotting
-using GitHub
 using HTTP
 using JSON
 using Plots
@@ -134,14 +133,9 @@ function autotune_setup(;
     @info "Configuration: large_matrices=$large_matrices, telemetry=$telemetry, make_plot=$make_plot, set_preferences=$set_preferences"
     @info "Element types to benchmark: $(join(eltypes, ", "))"
 
-    # Set up GitHub authentication early if telemetry is enabled
-    github_auth = nothing
+    # Note: Using anonymous gists for telemetry - no authentication needed
     if telemetry
-        @info "🔗 Checking GitHub authentication for telemetry..."
-        github_auth = setup_github_authentication()
-        if github_auth === nothing
-            @info "📊 Continuing with benchmarking (results will be saved locally)"
-        end
+        @info "🌐 Telemetry enabled - will share results via anonymous GitHub gist"
     end
 
     # Get system information
@@ -222,7 +216,7 @@ function autotune_setup(;
     if telemetry && nrow(successful_results) > 0
         @info "📤 Preparing telemetry data for community sharing..."
         markdown_content = format_results_for_github(results_df, system_info, categories)
-        upload_to_github(markdown_content, plot_files, github_auth, results_df, system_info, categories)
+        upload_to_github(markdown_content, plot_files, nothing, results_df, system_info, categories)
     end
 
     @info "Autotune setup completed!"