fix(html-report): read and render the tracker deadline column (#325)

/html-report was the one tracker consumer #319's deadline column left behind:
Step 1 now parses every canonical column and Step 3 renders Deadline after Date.
The drift guard derives CANONICAL_HEADER from apply.md itself, so a future
column added elsewhere but missing here fails with the column named; legacy
13-field rows read as empty deadline, never dropped, never inferred. Includes
rule-6 sweep refinements and deadline-reconciliation rules authored by
jakob1379.

Co-authored-by: Jakob Stender Guldberg <17257805+jakob1379@users.noreply.github.com>

tests/test_html_report_command.py

@@ -5,6 +5,7 @@ properties of the real repo, testing the things CI would catch if the
 command file or gitignore rule were wrong.
 """
 
+import re
 import subprocess
 import sys
 import unittest
@@ -42,6 +43,54 @@ class HtmlReportCommandFileTests(unittest.TestCase):
         self.assertGreater(len(text), 100, "Command file appears suspiciously short")
 
 
+class HtmlReportTrackerFieldTests(unittest.TestCase):
+    """The dashboard is a consumer of every tracker column: the Step 1 field
+    enumeration and the Step 3 table columns must stay in phase with the
+    canonical 14-column header (apply.md /outcome.md Step 1.1), so a future
+    column addition cannot silently vanish from the dashboard the way
+    `deadline` did."""
+
+    # Derived, never copied: a header literal repeated in this file drifts in
+    # lockstep with the spec it polices - add a 15th column to apply.md and a
+    # stale hardcoded 14-column list still passes every comparison here (a
+    # 14-column string is a substring of a 15-column header). Reading the
+    # canonical line back from apply.md makes the simulated drift fail with a
+    # clean list diff naming the missing column instead.
+    CANONICAL_HEADER = re.search(
+        r"^\s*(date,company,[a-z_,]+)$",
+        (REPO_ROOT / ".claude" / "commands" / "apply.md").read_text(encoding="utf-8"),
+        re.M,
+    ).group(1).split(",")
+
+    def test_step1_parses_every_canonical_tracker_column(self):
+        text = COMMAND_FILE.read_text(encoding="utf-8")
+        match = re.search(
+            r"Parse every row into a record with fields:\n\s+((?:`[^`]+`,?\s*)+)",
+            text,
+        )
+        self.assertIsNotNone(match, "Step 1 field enumeration not found")
+        fields = [f.strip() for f in re.findall(r"`([^`]+)`", match.group(1))]
+        self.assertEqual(fields, self.CANONICAL_HEADER)
+
+    def test_step3_table_columns_include_deadline_after_date(self):
+        """Date · Deadline order is the whole point of the change: the dashboard
+        must surface the clock that drives `/rank`'s urgency next to the date.
+        A membership pair (both `Date` and `Deadline` present somewhere) cannot
+        tell a swapped order from the correct one, and the order is what the
+        table shows the reader."""
+        text = COMMAND_FILE.read_text(encoding="utf-8")
+        match = re.search(r"### Table: columns to include\n\n(.+)\n", text)
+        self.assertIsNotNone(match, "Step 3 table column list not found")
+        line = match.group(1)
+        self.assertIn(
+            "`Date` · `Deadline` · `Company`",
+            line,
+            "Step 3 must offer the Deadline column directly after Date - the "
+            "list defines the dashboard's column order, and a swapped order "
+            "reads as a different table",
+        )
+
+
 class HtmlReportGitignoreTests(unittest.TestCase):
     """reports/ must be gitignored — it holds personal generated output."""