Analysis: read a rarely-read meter as coarse, not absent; newest rows first

Three things a reported Heizoel page got wrong at once. Its tank is dipped
a few times a year and its burner read every few months, which is exactly
the shape the coverage rules had not been walked through.

"No data" for data that exists. A tank books nothing until the next
dipstick closes the interval, so the stretch after the last dipstick is
covered by no run at all, and a bucket no run covers was reported missing.
The burner, whose run reaches into the window, said "only coarser data" --
the honest answer -- so one card claimed there was nothing while the
coverage panel beside it listed years of data. A bucket that no run covers,
no gap overlaps and no opening balance explains now reports the meter's
resolution when its preceding coverage is within one interval of its own
class: it is not silent, it is read rarely. A meter that does book its own
buckets and stops -- a dead hourly source, a sheet asked about a later
month -- still reads missing.

Auto answering twelve months with one bar. Coarse only means "longer than
a month", so a dipstick taken each autumn straddles a New Year as surely
as a month start: coarsening the chart to years bought nothing and cost
every point. The planning resolution now caps coarse at month when a run
crosses a local year edge, and a series that cannot resolve the natural
size no longer coarsens the whole chart -- it is drawn at that size with
its buckets marked, which the chart and table already explain.

A page contradicting itself. The comparison line above the ranking was fed
the leading measure's matched coverage but worded as if it spoke for the
page, directly above a burner row that did compare. It now names the figure
it is about.

Alongside: the "largest changes" ranking no longer drops a meter whose
change is not comparable. It ranks what can be ranked, then lists the rest
with their values and the reason -- the tank had been vanishing from its
own energy type. And every dated table now reads newest first, as lists
are read; charts stay chronological left to right, and the CSV export
stays ascending for spreadsheets.

A-41 to A-43 in the note record the three rules.

docs/RELEASE_NOTES.md

@@ -150,6 +150,15 @@ Back up the database (`pg_dump`) first.
 - MudBlazor's own labels are in German too.
 - Pages work at phone width.
 - Amounts use the configured currency (`MeterVault__Currency`) instead of a hard-coded €.
+- On a page that shows several figures, the line about the compared dates names the figure it is about, so it can no
+  longer say "not comparable" above a table that compares another meter month by month (A-41).
+- Every dated table reads newest first, with the total above the rows it sums: the meter's Analysis tab, an energy
+  type's History, the Analysis page, Solar, Tanks & consumables, the tariff lists and a virtual meter's preview. The
+  meter page's events and price changes are one dated list instead of two. Charts and the CSV export stay
+  chronological, because that is how they are read (A-42).
+- "Largest changes by meter" no longer leaves out a meter it cannot rank: one that has data but no comparable change —
+  a tank dipped a few times a year — is listed under "Other meters" with both its values and the reason there is no
+  change. A meter with nothing on either side stays out, and whatever the caps leave over is counted out loud (A-43).
 - Deleting a meter or an energy type also deletes the tariffs scoped to it.
 - JSON export/import now carries meter connections, re-links virtual formulas to the new meter ids, and no longer
   restores the tariffs of deleted meters onto other meters.
@@ -170,6 +179,8 @@ Einsparung) is unchanged. The seeded yearly bill matches the sheet's `Jahreskost
 | Price of a longer bucket | Month buckets used the price of the 15th, year buckets the price of 1 July | Every bucket is priced month by month at the price of the 15th, so a year equals the sum of its months and changing the bucket never changes a total (D-36) |
 | Months in which the billed grid meter was not yet (or no longer) in service | — (0.3.0 summed every meter) | Unavailable rather than free while use was measured, with an attention item naming the grid meter and the months (A-17) |
 | Tank, runtime, direct-delta or instant-rate readings more than a month apart (a tank dipped every few months, quarterly burner hours) | Booked whole in the month of the later reading, with zeros in between | The months in between read "only coarser data" (not zero). A year or longer bucket is priced when all its months share one price; otherwise it is unavailable with an attention item (A-16) |
+| A period that opens after the last reading of a meter read more coarsely than it (a tank dipped once a year, last dipped shortly before the period began) | "No data for this period", beside a coverage panel listing years of data | "Only coarser data", naming the resolution: the next dipstick will book it. The card, the chart, the table and the coverage panel now say the same thing, and the panel adds a measure's own dates when they differ from the type's. A meter that books its own buckets — an hourly source gone silent, a monthly sheet asked about a later month — still reads "no data" (A-41) |
+| Automatic interval with data coarser than a month | The whole chart went to years, which resolved nothing: "last 12 months" became one bar per year | Months, with the buckets marked "only coarser data" and the coarser interval one click away. A meter read on the quarter, whose intervals lie inside one year, still charts in years (A-41) |
 | Manual costs | Counted in the Overview but not in the trend; a cost dated later this month counted at once | Counted once, on their start day, when that day has come, everywhere: Overview, Analysis, categories, export (D-41) |
 | Cost categories | Sum of their member meters' costs | The priced non-overlapping cover of their members plus their manual costs. Seeded Strom = Netz × price. A category overlapping another is shown as a view, apart from the composition. A category whose members price nothing says so (D-42, A-22) |
 | Virtual meters | No analysis; the flow summed incoming links, ignoring any formula | Full analysis from the stored formula; the Sankey uses the same values (D-27, D-30) |