WEBFETCH-WP-0003: Forgejo CI, org licence, inbox acks, progress

- .forgejo/workflows/test.yaml: offline tests on Python 3.10 and 3.13
- LICENSE: Target Revenue Source License V1C1 (org-wide preliminary licence)
- pyproject: license field; AGENTS/SCOPE: CI and licence facts

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 153021@bnt-lap001
Assistant-Session: 46917be4-6400-4106-b8b7-61953a0caf24

.forgejo/workflows/test.yaml

@@ -0,0 +1,43 @@
+# Offline unit tests on the oldest and newest supported Python.
+# Standard library only: no install step; the exact pushed revision is fetched
+# as an archive (the repository is public), following key-cape's acceptance job.
+name: Tests
+
+on:
+  push:
+    branches: [main]
+    tags: ["v*"]
+  workflow_dispatch:
+
+jobs:
+  unittest-py310:
+    runs-on: ubuntu-latest
+    container:
+      image: python:3.10-alpine
+    steps:
+      - name: Offline unit tests (Python 3.10)
+        run: |
+          set -eu
+          mkdir -p /tmp/src
+          wget -qO /tmp/src.tar.gz "https://forgejo.coulomb.social/${GITHUB_REPOSITORY}/archive/${GITHUB_SHA}.tar.gz"
+          tar xzf /tmp/src.tar.gz -C /tmp/src --strip-components=1
+          cd /tmp/src
+          python3 --version
+          python3 -m compileall -q web_fetcher
+          python3 -B -m unittest discover -s tests -v
+
+  unittest-py313:
+    runs-on: ubuntu-latest
+    container:
+      image: python:3.13-alpine
+    steps:
+      - name: Offline unit tests (Python 3.13)
+        run: |
+          set -eu
+          mkdir -p /tmp/src
+          wget -qO /tmp/src.tar.gz "https://forgejo.coulomb.social/${GITHUB_REPOSITORY}/archive/${GITHUB_SHA}.tar.gz"
+          tar xzf /tmp/src.tar.gz -C /tmp/src --strip-components=1
+          cd /tmp/src
+          python3 --version
+          python3 -m compileall -q web_fetcher
+          python3 -B -m unittest discover -s tests -v