## Slice A — explicit dark/light toggle
projax now ships with two palettes and a 1y cookie to remember the choice.
Dark is the new default; ☀ button in the header nav flips to light and
writes projax_theme=light. Server reads the cookie via themeFromRequest(r)
and injects Theme + ThemeColor into every template via the centralised
render(w, r, …) path, so first paint never flashes the wrong theme. Inline
JS in layout.tmpl handles the toggle without a server roundtrip.
Every panel colour now lives in a CSS variable under
:root[data-theme=dark|light]; the only hardcoded hex values left are
inside those two :root blocks. A future palette tweak is one edit, not
30 selectors. Graph node colours, kind-badges, highlights and warn/ok/bad
all have parallel dark/light values picked for contrast.
Standalone SVG download bakes the light palette inline because the
downloaded asset has no parent :root providing vars — m's existing
snapshots stay print-friendly regardless of his current cookie.
Login page keeps its embedded dark CSS — it's the gateway, intentionally
always dark.
Tests: TestThemeDefaultIsDark, TestThemeCookieRoundTrips,
TestThemeCookieUnknownFallsBackToDark, TestThemeTogglePagesShareSameTheme,
TestThemeToggleScriptPresent, TestThemeColorMetaHelper. Full suite green.
## Slice B — file-upload permanently out of scope (m, 2026-05-17)
docs/design.md moves "File uploads / in-projax storage" from the §3c
parked list to a permanent "Out of scope (decided 2026-05-17)" clause
with the rationale: PER is the cross-reference index, not the file
system. docs/standards/per.md gains the same explicit clause so future
shifts working from the PER standard see the constraint where they
look. Memory note filed so future workers don't re-propose multipart
uploads, attachments tables, or documents buckets.
## docs/design.md §13 Theming
Documents the toggle approach, cookie semantics, palette table, the
standalone-SVG carve-out, the login-page exception, and the 4b
out-of-scope (prefers-color-scheme detection, per-page overrides,
transitions on swap).
migration 0011_item_links_event_date.sql: ADD event_date date + partial
index (idempotent). Day granularity by design per the PER spec; the
column lands NULL on every existing row, no backfill.
store:
- ItemLink gains an EventDate *time.Time (every read path scans it).
- AddLinkDated(ctx, item, refType, refID, rel, note, date, metadata)
upserts with COALESCE(new, old) for note + event_date so partial
callers don't clobber prior state.
- DatedLinks(item) returns event_date IS NOT NULL ordered DESC.
web:
- per.go: parsePER strips a trailing .YYMMDD (rejects invalid dates like
Feb 30); collisionTag yields a/b/.../z/aa/ab/...; computePERs walks
DatedLinks output and assigns render-time collision tags inside each
date group. Tags are never stored.
- handleDetail: 404 retry with PER stripped — /i/mfin.house1.260515
resolves to the house1 item with HighlightDate=2026-05-15.
- documents_section.tmpl: add-form (ref_type/date/ref_id/note),
date-sorted rows with computed PER, ref-type badge, remove × with
anti-forgery item-id check, highlight row when HighlightDate matches.
- POST /i/{path}/links/add and /links/remove handlers; HTMX swap on the
fragment, redirect for non-HTMX callers.
mcp:
- add_link accepts event_date: "YYYY-MM-DD" (parsed strict, hands back
fmt.Errorf on bad form). linkView.event_date surfaces it on responses.
- Existing add_link callers without event_date keep working unchanged.
docs:
- docs/standards/per.md gains an Implementation section pointing at
item_links.event_date + ref_types + render-time collision policy.
- docs/design.md adds a Documents/dated artifacts section with the
schema delta, conflict policy, and URL routing rules.
tests:
- per_test.go: parsePER (valid/invalid dates, non-numeric, wrong
length); collisionTag (1..53); computePERs (bare-then-.a, skips
undated, multi-date grouping).
External-citable references for letters, invoices, filing labels, email
subjects, PDF filenames, bank-transfer Verwendungszweck.
Format: <area>[.<project>...][.<YYMMDD>][.<collision-tag>]
- Date suffix YYMMDD (compact, not ISO).
- Collision-tag (.a, .b, ...) only when same <path>[.<date>] repeats.
- No doc-type taxonomy in v0.1 — collision-tag covers the disambiguation
case at lower memorisation cost.
- Lookup case-insensitive; display in m's preferred camelCase.
- Rename stability via projax.items.aliases[].
