chore: simplify .gitignore and prepare repo for public release

Slim the committed .gitignore down to generic patterns (Python, env,
model artifacts, secrets, IDE, Next.js, root-level visual-regression
globs). Move local-only patterns to .git/info/exclude.

Also pull in the latest in-progress site polish under web/.

Author: javierdejesusda

.gitignore

@@ -40,38 +40,16 @@ data/cache/
 anthropic_key.txt
 huggingface_token.txt
 
-# AMD Developer Cloud orchestration (ephemeral state + logs)
+# Eval outputs (regenerable from eval scripts; published ledger lives in docs/)
+data/eval/*.json
+data/eval/*.jsonl
+data/eval/*.txt
+data/sample/
+
+# AMD Developer Cloud orchestration state
 .adc_state.json
-scripts/adc/*.log
 docs/adc-runs/
 
-# Local-only session notes (engineering log for the maintainer; not for
-# public consumption). Public-facing changelog lives in docs/CHANGELOG.md.
-docs/session_*.md
-docs/mi300x_handoff.md
-docs/superpowers/
-
-# Agent / AI tooling state — never commit. CLAUDE.md is project memory used
-# locally by Claude Code; .claude/ is the per-project plugin/hook tree;
-# .mcp.json is the MCP server config; .adc_known_hosts is the SSH host db.
-CLAUDE.md
-.claude/
-.mcp.json
-.adc_known_hosts
-
-# Operational logs from background eval runs and orchestrators (large,
-# regenerable, not part of the published reproducibility ledger).
-bo*_autopilot.log
-bo*_full.log
-bo*_smoke.log
-data/eval/*.log
-data/eval/*.epoch
-data/eval/*.err
-texput.log
-
-# Personal hackathon scratch (private notes, not public collateral).
-amd-developer-hackathon.md
-
 # IDE / OS
 .vscode/
 .idea/
@@ -85,46 +63,12 @@ web/out/
 web/playwright-report/
 web/test-results/
 web/lh.json
-
-# build artifacts
 web/tsconfig.tsbuildinfo
-web/.next/
-web/out/
-web/playwright-report/
 
-# Local visual-regression artifacts and Lighthouse runs from the r2 polish
-# pass and earlier audit/review passes. Generated by Playwright scripts
-# at the repo root; large and regenerable. Committed Playwright snapshots
-# live under web/tests/e2e/__snapshots__/.
+# Local visual-regression and Lighthouse artifacts at the repo root
 /*.png
 /*.jpeg
 /*.jpg
-/*-lh-*.report.html
-/*-lh-*.report.json
+/*.report.html
+/*.report.json
 /*-vitals.json
-/.playwright-mcp/
-/tmp-lh-*
-
-# Operational eval outputs (run logs, scoring JSON/JSONL). Regenerable
-# from the eval scripts; the published reproducibility ledger is in
-# docs/. Do not commit.
-data/eval/*.json
-data/eval/*.jsonl
-data/eval/*.txt
-data/sample/
-
-# Internal engineering notes for the r2 / r3 / awwwards / audit passes.
-/r2-handoff.md
-/r2-readout.md
-/r2-findings.md
-/r2-cinema.md
-/r3-*.md
-/phase*-readout.md
-/audit-findings.md
-/awwwards-readout.md
-/yuholens-pipeline-build-spec.md
-/design_handoff_yuholens/
-/docs/technical-report/
-/docs/site-deploy.md
-/scripts/_pipeline/
-/scripts/adc/