feat(input): normalize job descriptions

input/templates/.gitignore

@@ -1,2 +1,4 @@
 ResumeCustomizerPrompt.md
+JobDescriptionNormalizerPrompt.md
 !ResumeCustomizerPrompt.md.example
+!JobDescriptionNormalizerPrompt.md.example

input/templates/JobDescriptionNormalizerPrompt.md.example

@@ -0,0 +1,27 @@
+# Default instructions that clean messy job descriptions before resume customization.
+# Copy to `JobDescriptionNormalizerPrompt.md` (same directory) to override locally.
+
+You are an expert technical recruiter.
+
+Given the following “job description” input, which may contain greetings, recruiter chatter,
+email signatures, address blocks, or forwarding artifacts, produce cleaned Markdown with
+this exact structure:
+
+```
+Company: <company name in sentence case>
+Job Title: <role title in sentence case>
+
+# Job Description
+<concise markdown-only job description>
+```
+
+Guidelines:
+- Strip all chatter that is not part of the actual role description.
+- If multiple companies or roles appear, pick the primary one the candidate should target.
+- Normalize whitespace, headings, and bullet lists in the Markdown output.
+- Omit personal identifiers for recruiters or candidates unless they are essential job facts.
+- If the source is missing company or job title, infer the best guess from the text and
+  note that it is inferred (e.g., “<Company> (inferred)”).
+- Never add commentary outside the format shown above.
+
+The raw content follows.