chore(config): add FUNDING.yml, PULL_REQUEST_TEMPLATE, upstream‑wontport.txt, and .gitignore files

.github/FUNDING.yml

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+github: MadsLorentzen
+ko_fi: madslorentzen

.github/PULL_REQUEST_TEMPLATE.md

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+<!-- Heads-up before you publish: if you built this in a personalized fork
+     (your profile data, your market's job portals, another AI runtime),
+     note that GitHub points new PRs at the UPSTREAM repo by default.
+     Those adaptations live in forks - see CONTRIBUTING.md - and get
+     discovered via the pinned "Community forks & adaptations" discussion (#78).
+     Check the "base repository" dropdown above before you continue. -->
+
+## What changed and why
+
+## Failing case / reproduction (for fixes)
+
+## Verification
+<!-- What you ran, per CONTRIBUTING: python3 tools/lint_skills.py,
+     python3 tools/check_framework_version.py, bun test / bun run typecheck
+     in touched CLIs, python3 -m unittest discover -s tests -->

.github/upstream-wontport.txt

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+# Upstream commits this fork has consciously decided never to port.
+# tools/upstream_triage.py skips anything listed here so it stops re-surfacing
+# in the weekly Upstream watch report. One SHA per line (short or full); text
+# after # is a note.
+#
+# Only for commits you've reviewed and rejected on purpose. Commits you DO
+# port drop off automatically once cherry-picked (patch-id match), so they
+# never need an entry here. Likewise commits that only touch files your fork
+# removed are auto-skipped - you don't need to list those either.
+#
+# This ships empty on the template. Populate it in your own fork, e.g.:
+#   cffacfd   # Danish demo portals - my fork removed them on purpose