feat: rebuild evidence-first application workflow

resume_builder/templates/resume_template_dach.tex

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+% Swiss/DACH alternative. Use only when local conventions suit the employer.
+% The photo remains opt-in; never add one automatically.
+\input{resume_template.tex}
+
+% Generation instructions:
+% 1. Keep the same conventional employer/title/date structure and evidence rules.
+% 2. A professional photo may be added only after explicit user approval.
+% 3. Swiss B residence permit and no-sponsorship status are verified. Mention
+%    them only when useful; they do not need to consume header space by default.
+% 4. Attach employer references and diplomas as separate portal files only when requested.
+% 5. Do not add date of birth, marital status, gender or children.