fix(mail-templates): read \n as a line break in one-line inputs (1.0.2)

The playbook editor's input field is a single <input>, which drops the
newlines of a pasted text: the whole description reached the script as
one line starting with ## and rendered as a single heading. description
and callout_text without a real line break now take the two characters
\n as one.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BJu1jvaug4qY1kMgz8wx41

integrations/mail-templates/manifest.yaml

@@ -1,8 +1,8 @@
 id: mail_templates
 name: Mail Templates (ACKnowledge)
-version: 1.0.1
+version: 1.0.2
 description: "Turns a subject and a markdown description into an ACKnowledge SOC email (dark theme, header badge, signature with the logo, footer) — nothing is sent: chain the output into exchange-send-mail or mail-sender (`subject` → subject, `html_body` → html_body, `text_body` → body). Eight templates, each with its own badge and colour: sla_breach, incident_notification (colour follows `severity`), incident_update, incident_closure, action_required, escalation, threat_bulletin, info. The description takes markdown: headings (## is the blue capitalised section title), bold, italic, links, lists, quotes, rules, GFM tables, `code` and ``` blocks (hashes, IPs, command lines), and level pills `{{critical}}` `{{high}}` `{{medium}}` `{{low}}` `{{info}}` `{{ok}}` — `{{high:Élevée}}` changes the label. Raw HTML in the inputs is escaped, so alert data can be interpolated safely. The logo is an inline data-URI PNG: exchange-send-mail and mail-sender embed it; the Gmail integration does not, and the logo is lost there. No connection, no secret; stdlib-only."
-changelog: "1.0.1 — The Test button failed (NameError: __file__) and render-mail-template printed nothing: Riposte runs a script with exec(), without __file__ or __name__. The test no longer imports the renderer and the renderer runs main() unconditionally. | 1.0.0 — Initial release: render-mail-template (8 templates, markdown description with tables, code and level pills, optional callout, action button, case reference and severity, SOC or client footer, French or English) and a self-test."
+changelog: "1.0.2 — The playbook editor's input field is a single line and drops pasted newlines, so a pasted description rendered as one heading: description and callout_text without a line break now read the two characters \\n as one. | 1.0.1 — The Test button failed (NameError: __file__) and render-mail-template printed nothing: Riposte runs a script with exec(), without __file__ or __name__. The test no longer imports the renderer and the renderer runs main() unconditionally. | 1.0.0 — Initial release: render-mail-template (8 templates, markdown description with tables, code and level pills, optional callout, action button, case reference and severity, SOC or client footer, French or English) and a self-test."
 category: email
 
 # Nothing to connect to. The only setting names the bot in the SOC footer
@@ -27,7 +27,7 @@ commands:
           enum: [sla_breach, incident_notification, incident_update, incident_closure, action_required, escalation, threat_bulletin, info]
           description: "Layout: sla_breach (red, SLA ALERT), incident_notification (colour of `severity`), incident_update (blue, STATUS UPDATE), incident_closure (green, CLOSED), action_required (orange), escalation (magenta), threat_bulletin (violet), info (grey, default)"
         subject: { type: string, description: "Subject, also shown as the title of the mail" }
-        description: { type: string, description: "Body in markdown — ## section titles, **bold**, lists, tables, `code`, ``` blocks, {{medium}} pills" }
+        description: { type: string, description: "Body in markdown — ## section titles, **bold**, lists, tables, `code`, ``` blocks, {{medium}} pills. In a one-line field, write each line break as \\n" }
         callout_text: { type: string, description: "Highlighted box above the description (markdown). Empty: no box" }
         callout_title: { type: string, description: "Title of the box (default: the template badge, e.g. ⚠ SLA ALERT)" }
         button_label: { type: string, description: "Action button text, e.g. Open the case in Riposte (needs button_url)" }

integrations/mail-templates/scripts/render_mail_template.py

@@ -405,6 +405,16 @@ def _when(raw, lang):
     return "%d %s %d, %s UTC" % (d.day, STRINGS["en"]["months"][d.month - 1], d.year, d.strftime("%H:%M"))
 
 
+def _lines(v):
+    """The markdown with its line breaks. The playbook editor's input field is a
+    single line and drops pasted newlines, so a text without one may spell them
+    as the two characters \\n instead."""
+    v = str(v or "").strip()
+    if "\n" not in v and "\\n" in v:
+        v = v.replace("\\r\\n", "\n").replace("\\n", "\n")
+    return v
+
+
 def _choice(inputs, key, allowed, default):
     v = _s(inputs.get(key)).lower() or default
     if v not in allowed:
@@ -417,7 +427,7 @@ def render(cfg, inputs):
     lang = _choice(inputs, "lang", ["fr", "en"], "fr")
     audience = _choice(inputs, "audience", ["soc", "client"], "soc")
     subject = _s(inputs.get("subject"))
-    description = str(inputs.get("description") or "").strip()
+    description = _lines(inputs.get("description"))
     if not subject:
         raise Exception("subject is required")
     if not description:
@@ -435,7 +445,7 @@ def render(cfg, inputs):
         raise Exception("button_url must start with http:// or https://")
     if button_label and not button_url:
         raise Exception("button_url is required with button_label")
-    callout_text = str(inputs.get("callout_text") or "").strip()
+    callout_text = _lines(inputs.get("callout_text"))
     bot = _s(cfg.get("bot_name")) or "Riposte"
 
     t = TEMPLATES[template]