HTML generator moved to GIT submodule

[hagenl-m]

For easier reuse of HTML generator in different "problems" repos the generator has been moved to a seperate GIT submodule

[hsd-problem-testing]

Problem	Solution	Type	Status	Message
binary	invalid_1	invalid	✅
binary	invalid_2	invalid	✅
binary	valid_1	valid	✅
binary	valid_2	valid	✅
bogo	invalid_1	invalid	✅
bogo	invalid_2	invalid	✅
bogo	invalid_3	invalid	✅
bogo	valid_1	valid	✅
bogo	valid_2	valid	✅
bubble	invalid_1	invalid	✅
bubble	invalid_2	invalid	✅
bubble	invalid_3	invalid	✅
bubble	valid_1	valid	✅
bubble	valid_2	valid	✅
divide-integers	alt_1	valid	✅
divide-integers	alt_2	valid	✅
divide-integers	invalid_1	invalid	✅
divide-integers	invalid_2	invalid	✅
divide-integers	invalid_3	invalid	✅
einsen	valid_1	valid	✅
einstein	alt_1	valid	✅
emojize	alt_1	valid	✅
emojize	alt_2	valid	✅
emojize	invalid_1	invalid	✅
extensions	alt_1	valid	✅
extensions	alt_2	valid	✅
faces	alt_1	valid	✅
hackers	valid_1	valid	✅
hello	alt_1	valid	✅
iban	valid_1	valid	✅
insert	invalid_1	invalid	✅
insert	valid_1	valid	✅
interpreter	valid_1	valid	✅
intervals	invalid_1	invalid	✅
intervals	valid_1	valid	✅
intervals	valid_2	valid	✅
linear	valid_1	valid	✅
linear	valid_2	valid	✅
linkedAfter	valid_1	valid	✅
linkedFind	valid_1	valid	✅
linkedInsert	valid_1	valid	✅
linkedMerge	valid_1	valid	✅
linkedRemove	valid_1	valid	✅
linkedStack	valid_1	valid	✅
luhn	valid_1	valid	✅
merge	invalid_1	invalid	✅
merge	invalid_2	invalid	✅
merge	invalid_3	invalid	✅
merge	invalid_4	invalid	✅
merge	valid_1	valid	✅
merge	valid_2	valid	✅
merge	valid_3	valid	✅
merge	valid_4	valid	✅
mitternacht	valid_1	valid	✅
mitternacht	valid_2	valid	✅
nadel	alt_1	valid	✅
neuner			⚠️	Reason No tests found
palindrom	invalid_1	invalid	✅
palindrom	valid_1	valid	✅
playback	alt_1	valid	✅
rotate	invalid_1	invalid	✅
rotate	valid_1	valid	✅
rotate	valid_2	valid	✅
rotate	valid_3	valid	✅
rotate	valid_4	valid	✅
run_back	invalid_1	invalid	✅
run_back	invalid_2	invalid	✅
run_back	invalid_3	invalid	✅
run_back	valid_1	valid	✅
run_back	valid_2	valid	✅
strings	alt_1	valid	✅
stufen	valid_1	valid	✅
stufen	valid_2	valid	✅
sudoku1	valid_1	valid	✅
sudoku1	valid_2	valid	✅
sudoku1	valid_3	valid	✅
sudoku2	valid_1	valid	✅
tip	alt_1	valid	✅
wise2026	alt_1	valid	✅
zahlenjagd	alt_1	valid	✅
zeilen	invalid_1	invalid	✅
zeilen	invalid_2	invalid	✅
zeilen	valid_1	valid	✅
zeilen	valid_2	valid	✅

Problem Summary: 84 total

✅ Passed: 83
🔴 Failed: 0
⚠️ Warnings: 1

[Copilot]

Copilot review overview

🟡 Changes recommended

The submodule gitlink is missing, and the setup documentation does not explain how to initialize the new submodule.

Review effort: Balanced
Findings: 1 · 1

Open (2)

• Missing .generator submodule gitlink leaves fresh checkouts empty · New
• README omits required submodule initialization steps · New

What changed in this PR

Moves the HTML generator and shared templates toward reuse through an external Git submodule.

Changes:

• Adds .generator submodule configuration.
• Removes locally maintained generator scripts and slug configuration.
• Removes shared HTML templates now intended to reside in the submodule.

File	Description
.gitmodules	Configures the generator repository URL.
.generator/​slugs.py	Removes local course slugs.
.generator/​main.py	Removes the local generator entry point.
.generator/​generator.py	Removes local Jinja rendering logic.
.generator/​generate_offline.py	Removes offline generation logic.
_html_templates/​how_to_test_head.html	Removes testing heading template.
_html_templates/​how_to_test_auto.html	Removes automated-testing instructions.
_html_templates/​how_to_submit.html	Removes submission instructions.
_html_templates/​how_to_mark_in_moodle.html	Removes Moodle completion instructions.
_html_templates/​honesty.html	Removes embedded tutoring guidance.
_html_templates/​header.html	Removes shared page header.
_html_templates/​footer.html	Removes shared page footer.
_html_templates/​file.html	Removes file-creation text.
_html_templates/​demo.html	Removes asciinema demo markup.
_html_templates/​command_box_with_cp.html	Removes copyable command markup.
_html_templates/​command_box_scripts.html	Removes command-copying JavaScript.
_html_templates/​before_you_begin.html	Removes setup instructions.
_html_templates/​before_you_begin_start.html	Removes initial environment instructions.

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[MMachmerth]

sieht gut aus.